20130121120122 has 32 divisors (see below), whose sum is σ = 48174648836160. Its totient is φ = 6193883421360.

The previous prime is 20130121120091. The next prime is 20130121120181. The reversal of 20130121120122 is 22102112103102.

20130121120122 is a `hidden beast` number, since 201 + 30 + 1 + 211 + 201 + 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 = 20130121120095 and 20130121120104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14337692404 + ... + 14337693807.

It is an arithmetic number, because the mean of its divisors is an integer number (1505457776130).

Almost surely, 2^{20130121120122} is an apocalyptic number.

20130121120122 is an abundant number, since it is smaller than the sum of its proper divisors (28044527716038).

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

20130121120122 is a wasteful number, since it uses less digits than its factorization.

20130121120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28675386235 (or 28675386229 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20130121120122 its reverse (22102112103102), we get a palindrome (42232233223224).

The spelling of 20130121120122 in words is "twenty trillion, one hundred thirty billion, one hundred twenty-one million, one hundred twenty thousand, one hundred twenty-two".