20120220022122 has 48 divisors (see below), whose sum is σ = 49196776243680. Its totient is φ = 5886793735200.

The previous prime is 20120220022043. The next prime is 20120220022157. The reversal of 20120220022122 is 22122002202102.

20120220022122 is a `hidden beast` number, since 20 + 1 + 202 + 200 + 221 + 22 = 666.

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 = 20120220022095 and 20120220022104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1752016204 + ... + 1752027687.

It is an arithmetic number, because the mean of its divisors is an integer number (1024932838410).

Almost surely, 2^{20120220022122} is an apocalyptic number.

20120220022122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20120220022122 is an abundant number, since it is smaller than the sum of its proper divisors (29076556221558).

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

20120220022122 is a wasteful number, since it uses less digits than its factorization.

20120220022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504043939 (or 3504043936 counting only the distinct ones).

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

Adding to 20120220022122 its reverse (22122002202102), we get a palindrome (42242222224224).

The spelling of 20120220022122 in words is "twenty trillion, one hundred twenty billion, two hundred twenty million, twenty-two thousand, one hundred twenty-two".