22012121112120 has 48 divisors (see below), whose sum is σ = 71539393615560. Its totient is φ = 5869898963136.

The previous prime is 22012121112119. The next prime is 22012121112133. The reversal of 22012121112120 is 2121112121022.

22012121112120 is a `hidden beast` number, since 220 + 1 + 21 + 211 + 1 + 212 + 0 = 666.

It is a super-4 number, since 4×22012121112120⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22012121112093 and 22012121112102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30572390074 + ... + 30572390793.

Almost surely, 2^{22012121112120} is an apocalyptic number.

22012121112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012121112120 is an abundant number, since it is smaller than the sum of its proper divisors (49527272503440).

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

22012121112120 is a wasteful number, since it uses less digits than its factorization.

22012121112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61144780884 (or 61144780877 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22012121112120 its reverse (2121112121022), we get a palindrome (24133233233142).

The spelling of 22012121112120 in words is "twenty-two trillion, twelve billion, one hundred twenty-one million, one hundred twelve thousand, one hundred twenty".