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22011221301 = 337859230849
BaseRepresentation
bin10100011111111110…
…001001010100110101
32002210222222220012120
4110133332021110311
5330034333040201
614040052510153
71406313202566
oct243776112465
962728886176
1022011221301
119375840393
12432361b359
1320ca280704
1410cb46216d
1588c5e8536
hex51ff89535

22011221301 has 16 divisors (see below), whose sum is σ = 30176712000. Its totient is φ = 14260866048.

The previous prime is 22011221269. The next prime is 22011221311. The reversal of 22011221301 is 10312211022.

It is not a de Polignac number, because 22011221301 - 25 = 22011221269 is a prime.

It is a super-2 number, since 2×220112213012 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011221311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20076 + ... + 210773.

It is an arithmetic number, because the mean of its divisors is an integer number (1886044500).

Almost surely, 222011221301 is an apocalyptic number.

It is an amenable number.

22011221301 is a deficient number, since it is larger than the sum of its proper divisors (8165490699).

22011221301 is a wasteful number, since it uses less digits than its factorization.

22011221301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231748.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22011221301 its reverse (10312211022), we get a palindrome (32323432323).

The spelling of 22011221301 in words is "twenty-two billion, eleven million, two hundred twenty-one thousand, three hundred one".

Divisors: 1 3 37 111 859 2577 31783 95349 230849 692547 8541413 25624239 198299291 594897873 7337073767 22011221301