20222220012120 has 256 divisors, whose sum is σ = 77799774412800. Its totient is φ = 4576456972800.

The previous prime is 20222220011953. The next prime is 20222220012131. The reversal of 20222220012120 is 2121002222202.

20222220012120 is a `hidden beast` number, since 202 + 222 + 200 + 1 + 21 + 20 = 666.

It is a super-2 number, since 2×20222220012120² (a number of 27 digits) contains 22 as substring.

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 = 20222220012093 and 20222220012102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12478504 + ... + 14005623.

It is an arithmetic number, because the mean of its divisors is an integer number (303905368800).

Almost surely, 2^{20222220012120} is an apocalyptic number.

20222220012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222220012120 is an abundant number, since it is smaller than the sum of its proper divisors (57577554400680).

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

20222220012120 is a wasteful number, since it uses less digits than its factorization.

20222220012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26484255 (or 26484245 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20222220012120 its reverse (2121002222202), we get a palindrome (22343222234322).

The spelling of 20222220012120 in words is "twenty trillion, two hundred twenty-two billion, two hundred twenty million, twelve thousand, one hundred twenty".