21120120010022 has 16 divisors (see below), whose sum is σ = 34560964695312. Its totient is φ = 9599841129120.

The previous prime is 21120120009973. The next prime is 21120120010079. The reversal of 21120120010022 is 22001002102112.

It is a junction number, because it is equal to n+sod(n) for n = 21120120009979 and 21120120010006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9656813 + ... + 11640200.

It is an arithmetic number, because the mean of its divisors is an integer number (2160060293457).

Almost surely, 2^{21120120010022} is an apocalyptic number.

21120120010022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21120120010022 is a deficient number, since it is larger than the sum of its proper divisors (13440844685290).

21120120010022 is a wasteful number, since it uses less digits than its factorization.

21120120010022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21342103.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21120120010022 its reverse (22001002102112), we get a palindrome (43121122112134).

The spelling of 21120120010022 in words is "twenty-one trillion, one hundred twenty billion, one hundred twenty million, ten thousand, twenty-two".