121211202201200 has 60 divisors (see below), whose sum is σ = 291254783171208. Its totient is φ = 48477010348800.

The previous prime is 121211202201151. The next prime is 121211202201269. The reversal of 121211202201200 is 2102202112121.

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, 20745767 + ... + 25938566.

Almost surely, 2^{121211202201200} is an apocalyptic number.

121211202201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121211202201200 is an abundant number, since it is smaller than the sum of its proper divisors (170043580970008).

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

121211202201200 is a wasteful number, since it uses less digits than its factorization.

121211202201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46690842 (or 46690831 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121211202201200 its reverse (2102202112121), we get a palindrome (123313404313321).

The spelling of 121211202201200 in words is "one hundred twenty-one trillion, two hundred eleven billion, two hundred two million, two hundred one thousand, two hundred".