21122000111010 has 64 divisors (see below), whose sum is σ = 51690799689984. Its totient is φ = 5522521132800.

The previous prime is 21122000110969. The next prime is 21122000111057. The reversal of 21122000111010 is 1011100022112.

It is a super-2 number, since 2×21122000111010² (a number of 27 digits) contains 22 as substring.

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, 27007929 + ... + 27778988.

It is an arithmetic number, because the mean of its divisors is an integer number (807668745156).

Almost surely, 2^{21122000111010} is an apocalyptic number.

21122000111010 is an abundant number, since it is smaller than the sum of its proper divisors (30568799578974).

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

21122000111010 is a wasteful number, since it uses less digits than its factorization.

21122000111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54787179.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21122000111010 its reverse (1011100022112), we get a palindrome (22133100133122).

The spelling of 21122000111010 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred eleven thousand, ten".