21220112101022 has 32 divisors (see below), whose sum is σ = 31921428857760. Its totient is φ = 10579695275520.

The previous prime is 21220112101003. The next prime is 21220112101079. The reversal of 21220112101022 is 22010121102212.

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, 2806518122 + ... + 2806525682.

It is an arithmetic number, because the mean of its divisors is an integer number (997544651805).

Almost surely, 2^{21220112101022} is an apocalyptic number.

21220112101022 is a deficient number, since it is larger than the sum of its proper divisors (10701316756738).

21220112101022 is a wasteful number, since it uses less digits than its factorization.

21220112101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10988.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21220112101022 its reverse (22010121102212), we get a palindrome (43230233203234).

The spelling of 21220112101022 in words is "twenty-one trillion, two hundred twenty billion, one hundred twelve million, one hundred one thousand, twenty-two".