20212210120120 has 32 divisors (see below), whose sum is σ = 45491004007920. Its totient is φ = 8082478494720.

The previous prime is 20212210120099. The next prime is 20212210120129. The reversal of 20212210120120 is 2102101221202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20212210120094 and 20212210120103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212210120129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75037422 + ... + 75306301.

Almost surely, 2^{20212210120120} is an apocalyptic number.

20212210120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212210120120 is an abundant number, since it is smaller than the sum of its proper divisors (25278793887800).

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

20212210120120 is a wasteful number, since it uses less digits than its factorization.

20212210120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150347095 (or 150347091 counting only the distinct ones).

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

Adding to 20212210120120 its reverse (2102101221202), we get a palindrome (22314311341322).

The spelling of 20212210120120 in words is "twenty trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, one hundred twenty".