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12211111111010 = 2572631372148341
BaseRepresentation
bin1011000110110001111011…
…1100001010100101100010
31121020101000022212201011212
42301230132330022211202
53100031323421023020
641545412413510122
72400136500602120
oct261543674124542
947211008781155
1012211111111010
113988780974179
1214527184a2342
136a766c96a356
14303041614910
1516298ba80cc5
hexb1b1ef0a962

12211111111010 has 64 divisors (see below), whose sum is σ = 25217872694784. Its totient is φ = 4170357542400.

The previous prime is 12211111111007. The next prime is 12211111111037. The reversal of 12211111111010 is 1011111111221.

12211111111010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122111111110102 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252579440 + ... + 252627780.

It is an arithmetic number, because the mean of its divisors is an integer number (394029260856).

Almost surely, 212211111111010 is an apocalyptic number.

12211111111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211111111010 is an abundant number, since it is smaller than the sum of its proper divisors (13006761583774).

12211111111010 is a wasteful number, since it uses less digits than its factorization.

12211111111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62339.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 12211111111010 its reverse (1011111111221), we get a palindrome (13222222222231).

The spelling of 12211111111010 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, one hundred eleven thousand, ten".

Divisors: 1 2 5 7 10 14 35 70 263 526 1315 1841 2630 3682 9205 13721 18410 27442 48341 68605 96047 96682 137210 192094 241705 338387 480235 483410 676774 960470 1691935 3383870 3608623 7217246 12713683 18043115 25260361 25427366 36086230 50520722 63568415 88995781 126301805 127136830 177991562 252603610 444978905 663286861 889957810 1326573722 3316434305 4643008027 6632868610 9286016054 23215040135 46430080270 174444444443 348888888886 872222222215 1221111111101 1744444444430 2442222222202 6105555555505 12211111111010