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12212011220101 = 711461833434111
BaseRepresentation
bin1011000110110101010010…
…0101110011110010000101
31121020110100001120222201121
42301231110211303302011
53100040144333020401
641550042010153541
72400201010443640
oct261552445636205
947213301528647
1012212011220101
1139890a2a70490
121452929a228b1
136a77842a1594
143030c8d9ca57
151629e0aceca1
hexb1b54973c85

12212011220101 has 16 divisors (see below), whose sum is σ = 15225698746368. Its totient is φ = 9515644081200.

The previous prime is 12212011220081. The next prime is 12212011220107. The reversal of 12212011220101 is 10102211021221.

12212011220101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12212011220101 - 29 = 12212011219589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212011220107) 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, 1839036 + ... + 5273146.

It is an arithmetic number, because the mean of its divisors is an integer number (951606171648).

Almost surely, 212212011220101 is an apocalyptic number.

12212011220101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12212011220101 is a deficient number, since it is larger than the sum of its proper divisors (3013687526267).

12212011220101 is a wasteful number, since it uses less digits than its factorization.

12212011220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480312.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12212011220101 its reverse (10102211021221), we get a palindrome (22314222241322).

The spelling of 12212011220101 in words is "twelve trillion, two hundred twelve billion, eleven million, two hundred twenty thousand, one hundred one".

Divisors: 1 7 11 77 46183 323281 508013 3434111 3556091 24038777 37775221 264426547 158597548313 1110182838191 1744573031443 12212011220101