121201011200 has 60 divisors (see below), whose sum is σ = 300285005790. Its totient is φ = 48480399360.

The previous prime is 121201011167. The next prime is 121201011221. The reversal of 121201011200 is 2110102121.

It can be written as a sum of positive squares in 3 ways, for example, as 118435092736 + 2765918464 = 344144^2 + 52592^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4721615 + ... + 4747214.

Almost surely, 2^121201011200 is an apocalyptic number.

121201011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201011200 is an abundant number, since it is smaller than the sum of its proper divisors (179083994590).

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

121201011200 is an frugal number, since it uses more digits than its factorization.

121201011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468857 (or 9468836 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121201011200 its reverse (2110102121), we get a palindrome (123311113321).

The spelling of 121201011200 in words is "one hundred twenty-one billion, two hundred one million, eleven thousand, two hundred".