21122000102012 has 24 divisors (see below), whose sum is σ = 39173114952720. Its totient is φ = 9930801900800.

The previous prime is 21122000102003. The next prime is 21122000102017. The reversal of 21122000102012 is 21020100022112.

It is a super-2 number, since 2×21122000102012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122000102017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139968614 + ... + 140119437.

It is an arithmetic number, because the mean of its divisors is an integer number (1632213123030).

Almost surely, 2^{21122000102012} is an apocalyptic number.

It is an amenable number.

21122000102012 is a deficient number, since it is larger than the sum of its proper divisors (18051114850708).

21122000102012 is a wasteful number, since it uses less digits than its factorization.

21122000102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280089181 (or 280089179 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21122000102012 its reverse (21020100022112), we get a palindrome (42142100124124).

The spelling of 21122000102012 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred two thousand, twelve".