21201012112022 has 32 divisors (see below), whose sum is σ = 33698306611200. Its totient is φ = 9975682656000.

The previous prime is 21201012111989. The next prime is 21201012112037. The reversal of 21201012112022 is 22021121010212.

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, 186307622 + ... + 186421382.

It is an arithmetic number, because the mean of its divisors is an integer number (1053072081600).

Almost surely, 2^{21201012112022} is an apocalyptic number.

21201012112022 is a deficient number, since it is larger than the sum of its proper divisors (12497294499178).

21201012112022 is a wasteful number, since it uses less digits than its factorization.

21201012112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146412.

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

Adding to 21201012112022 its reverse (22021121010212), we get a palindrome (43222133122234).

The spelling of 21201012112022 in words is "twenty-one trillion, two hundred one billion, twelve million, one hundred twelve thousand, twenty-two".