21011010211022 has 32 divisors (see below), whose sum is σ = 34467450816960. Its totient is φ = 9547320867840.

The previous prime is 21011010210973. The next prime is 21011010211031. The reversal of 21011010211022 is 22011201011012.

It is a junction number, because it is equal to n+sod(n) for n = 21011010210988 and 21011010211006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6717923 + ... + 9335550.

It is an arithmetic number, because the mean of its divisors is an integer number (1077107838030).

Almost surely, 2^{21011010211022} is an apocalyptic number.

21011010211022 is a deficient number, since it is larger than the sum of its proper divisors (13456440605938).

21011010211022 is a wasteful number, since it uses less digits than its factorization.

21011010211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16054268.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21011010211022 its reverse (22011201011012), we get a palindrome (43022211222034).

The spelling of 21011010211022 in words is "twenty-one trillion, eleven billion, ten million, two hundred eleven thousand, twenty-two".