21121122000022 has 16 divisors (see below), whose sum is σ = 35077684300992. Its totient is φ = 9457218805320.

The previous prime is 21121122000001. The next prime is 21121122000059. The reversal of 21121122000022 is 22000022112112.

It is a happy number.

It is a super-2 number, since 2×21121122000022² (a number of 27 digits) contains 22 as substring.

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, 7164558228 + ... + 7164561175.

It is an arithmetic number, because the mean of its divisors is an integer number (2192355268812).

Almost surely, 2^{21121122000022} is an apocalyptic number.

21121122000022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21121122000022 is a deficient number, since it is larger than the sum of its proper divisors (13956562300970).

21121122000022 is a wasteful number, since it uses less digits than its factorization.

21121122000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14329119483.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21121122000022 its reverse (22000022112112), we get a palindrome (43121144112134).

The spelling of 21121122000022 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred twenty-two million, twenty-two", and thus it is an aban number.