20120001121122 has 48 divisors (see below), whose sum is σ = 47451028694112. Its totient is φ = 5669824184640.

The previous prime is 20120001121109. The next prime is 20120001121123. The reversal of 20120001121122 is 22112110002102.

It is a super-2 number, since 2×20120001121122² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20120001121123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468714004 + ... + 468756927.

It is an arithmetic number, because the mean of its divisors is an integer number (988563097794).

Almost surely, 2^{20120001121122} is an apocalyptic number.

20120001121122 is an abundant number, since it is smaller than the sum of its proper divisors (27331027572990).

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

20120001121122 is a wasteful number, since it uses less digits than its factorization.

20120001121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937471023 (or 937471016 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20120001121122 its reverse (22112110002102), we get a palindrome (42232111123224).

The spelling of 20120001121122 in words is "twenty trillion, one hundred twenty billion, one million, one hundred twenty-one thousand, one hundred twenty-two".