20212211506120 has 32 divisors (see below), whose sum is σ = 45568613160000. Its totient is φ = 8068682420928.

The previous prime is 20212211506117. The next prime is 20212211506139. The reversal of 20212211506120 is 2160511221202.

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, 506297964 + ... + 506337883.

It is an arithmetic number, because the mean of its divisors is an integer number (1424019161250).

Almost surely, 2^{20212211506120} is an apocalyptic number.

20212211506120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212211506120 is an abundant number, since it is smaller than the sum of its proper divisors (25356401653880).

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

20212211506120 is a wasteful number, since it uses less digits than its factorization.

20212211506120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012636357 (or 1012636353 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 20212211506120 its reverse (2160511221202), we get a palindrome (22372722727322).

The spelling of 20212211506120 in words is "twenty trillion, two hundred twelve billion, two hundred eleven million, five hundred six thousand, one hundred twenty".