21211012101122 has 16 divisors (see below), whose sum is σ = 32444431370592. Its totient is φ = 10397702034720.

The previous prime is 21211012101091. The next prime is 21211012101131. The reversal of 21211012101122 is 22110121011212.

It is a self number, because there is not a number n which added to its sum of digits gives 21211012101122.

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, 375069203 + ... + 375125750.

It is an arithmetic number, because the mean of its divisors is an integer number (2027776960662).

Almost surely, 2^{21211012101122} is an apocalyptic number.

21211012101122 is a deficient number, since it is larger than the sum of its proper divisors (11233419269470).

21211012101122 is a wasteful number, since it uses less digits than its factorization.

21211012101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750195233.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 21211012101122 its reverse (22110121011212), we get a palindrome (43321133112334).

The spelling of 21211012101122 in words is "twenty-one trillion, two hundred eleven billion, twelve million, one hundred one thousand, one hundred twenty-two".