121222101200 has 60 divisors (see below), whose sum is σ = 291384579360. Its totient is φ = 48464119680.

The previous prime is 121222101199. The next prime is 121222101233. The reversal of 121222101200 is 2101222121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 718541 + ... + 871059.

It is an arithmetic number, because the mean of its divisors is an integer number (4856409656).

Almost surely, 2^121222101200 is an apocalyptic number.

121222101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121222101200 is an abundant number, since it is smaller than the sum of its proper divisors (170162478160).

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

121222101200 is a wasteful number, since it uses less digits than its factorization.

121222101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154524 (or 154513 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121222101200 its reverse (2101222121), we get a palindrome (123323323321).

The spelling of 121222101200 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred one thousand, two hundred".