20112211022120 has 64 divisors (see below), whose sum is σ = 51740234628480. Its totient is φ = 6892532464896.

The previous prime is 20112211022107. The next prime is 20112211022171. The reversal of 20112211022120 is 2122011221102.

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 15 ways as a sum of consecutive naturals, for example, 15428474 + ... + 16681193.

It is an arithmetic number, because the mean of its divisors is an integer number (808441166070).

Almost surely, 2^{20112211022120} is an apocalyptic number.

20112211022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112211022120 is an abundant number, since it is smaller than the sum of its proper divisors (31628023606360).

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

20112211022120 is a wasteful number, since it uses less digits than its factorization.

20112211022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32111922 (or 32111918 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112211022120 its reverse (2122011221102), we get a palindrome (22234222243222).

The spelling of 20112211022120 in words is "twenty trillion, one hundred twelve billion, two hundred eleven million, twenty-two thousand, one hundred twenty".