121010002001200 has 90 divisors (see below), whose sum is σ = 314810384524044. Its totient is φ = 44680616098560.

The previous prime is 121010002001123. The next prime is 121010002001257. The reversal of 121010002001200 is 2100200010121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 894976794 + ... + 895111993.

Almost surely, 2^{121010002001200} is an apocalyptic number.

121010002001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010002001200 is an abundant number, since it is smaller than the sum of its proper divisors (193800382522844).

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

121010002001200 is a wasteful number, since it uses less digits than its factorization.

121010002001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790088831 (or 1790088807 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121010002001200 its reverse (2100200010121), we get a palindrome (123110202011321).

The spelling of 121010002001200 in words is "one hundred twenty-one trillion, ten billion, two million, one thousand, two hundred".