121002112200 has 96 divisors (see below), whose sum is σ = 391415572800. Its totient is φ = 30864303360.

The previous prime is 121002112193. The next prime is 121002112211. The reversal of 121002112200 is 2211200121.

It is a super-2 number, since 2×121002112200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 4370335 + ... + 4397934.

It is an arithmetic number, because the mean of its divisors is an integer number (4077245550).

Almost surely, 2^121002112200 is an apocalyptic number.

121002112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002112200 is an abundant number, since it is smaller than the sum of its proper divisors (270413460600).

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

121002112200 is a wasteful number, since it uses less digits than its factorization.

121002112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768311 (or 8768302 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121002112200 its reverse (2211200121), we get a palindrome (123213312321).

It can be divided in two parts, 1210021 and 12200, that added together give a palindrome (1222221).

The spelling of 121002112200 in words is "one hundred twenty-one billion, two million, one hundred twelve thousand, two hundred".