21140122012022 has 16 divisors (see below), whose sum is σ = 34149635976960. Its totient is φ = 9756919929792.

The previous prime is 21140122012007. The next prime is 21140122012049. The reversal of 21140122012022 is 22021022104112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21140122011985 and 21140122012003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025338 + ... + 6810450.

It is an arithmetic number, because the mean of its divisors is an integer number (2134352248560).

Almost surely, 2^{21140122012022} is an apocalyptic number.

21140122012022 is a deficient number, since it is larger than the sum of its proper divisors (13009513964938).

21140122012022 is a wasteful number, since it uses less digits than its factorization.

21140122012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4955047.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21140122012022 its reverse (22021022104112), we get a palindrome (43161144116134).

The spelling of 21140122012022 in words is "twenty-one trillion, one hundred forty billion, one hundred twenty-two million, twelve thousand, twenty-two".