21022102101122 has 16 divisors (see below), whose sum is σ = 31616100368640. Its totient is φ = 10483435968528.

The previous prime is 21022102101101. The next prime is 21022102101173. The reversal of 21022102101122 is 22110120122012.

It is a super-2 number, since 2×21022102101122² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21022102101122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7259693 + ... + 9733824.

It is an arithmetic number, because the mean of its divisors is an integer number (1976006273040).

Almost surely, 2^{21022102101122} is an apocalyptic number.

21022102101122 is a deficient number, since it is larger than the sum of its proper divisors (10593998267518).

21022102101122 is a wasteful number, since it uses less digits than its factorization.

21022102101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16995145.

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

Adding to 21022102101122 its reverse (22110120122012), we get a palindrome (43132222223134).

The spelling of 21022102101122 in words is "twenty-one trillion, twenty-two billion, one hundred two million, one hundred one thousand, one hundred twenty-two".