21120100122022 has 16 divisors (see below), whose sum is σ = 34560337737744. Its totient is φ = 9599997204000.

The previous prime is 21120100121977. The next prime is 21120100122041. The reversal of 21120100122022 is 22022100102112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21120100121987 and 21120100122005.

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, 2257072 + ... + 6880012.

It is an arithmetic number, because the mean of its divisors is an integer number (2160021108609).

Almost surely, 2^{21120100122022} is an apocalyptic number.

21120100122022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21120100122022 is a deficient number, since it is larger than the sum of its proper divisors (13440237615722).

21120100122022 is a wasteful number, since it uses less digits than its factorization.

21120100122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830615.

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

Adding to 21120100122022 its reverse (22022100102112), we get a palindrome (43142200224134).

The spelling of 21120100122022 in words is "twenty-one trillion, one hundred twenty billion, one hundred million, one hundred twenty-two thousand, twenty-two".