122111121200 has 30 divisors (see below), whose sum is σ = 293371969644. Its totient is φ = 48844448320.

The previous prime is 122111121191. The next prime is 122111121203. The reversal of 122111121200 is 2121111221.

It is a super-2 number, since 2×122111121200² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122111121203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152638502 + ... + 152639301.

Almost surely, 2^122111121200 is an apocalyptic number.

122111121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111121200 is an abundant number, since it is smaller than the sum of its proper divisors (171260848444).

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

122111121200 is a wasteful number, since it uses less digits than its factorization.

122111121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305277821 (or 305277810 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122111121200 its reverse (2121111221), we get a palindrome (124232232421).

The spelling of 122111121200 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred twenty-one thousand, two hundred".