21022110200120 has 32 divisors (see below), whose sum is σ = 47300449057200. Its totient is φ = 8408719438848.

The previous prime is 21022110200041. The next prime is 21022110200167. The reversal of 21022110200120 is 2100201122012.

It is a junction number, because it is equal to n+sod(n) for n = 21022110200095 and 21022110200104.

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, 1138649 + ... + 6583368.

Almost surely, 2^{21022110200120} is an apocalyptic number.

21022110200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022110200120 is an abundant number, since it is smaller than the sum of its proper divisors (26278338857080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022110200120 is a wasteful number, since it uses less digits than its factorization.

21022110200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7790087 (or 7790083 counting only the distinct ones).

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

Adding to 21022110200120 its reverse (2100201122012), we get a palindrome (23122311322132).

The spelling of 21022110200120 in words is "twenty-one trillion, twenty-two billion, one hundred ten million, two hundred thousand, one hundred twenty".