22102012001212 has 24 divisors (see below), whose sum is σ = 45440500199472. Its totient is φ = 9273571468800.

The previous prime is 22102012001197. The next prime is 22102012001269. The reversal of 22102012001212 is 21210021020122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19319939989 + ... + 19319941132.

It is an arithmetic number, because the mean of its divisors is an integer number (1893354174978).

Almost surely, 2^{22102012001212} is an apocalyptic number.

22102012001212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22102012001212 is an abundant number, since it is smaller than the sum of its proper divisors (23338488198260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22102012001212 is a wasteful number, since it uses less digits than its factorization.

22102012001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38639881149 (or 38639881147 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22102012001212 its reverse (21210021020122), we get a palindrome (43312033021334).

The spelling of 22102012001212 in words is "twenty-two trillion, one hundred two billion, twelve million, one thousand, two hundred twelve".