1201807912900 has 81 divisors (see below), whose sum is σ = 3033900269127. Its totient is φ = 412022116800.

The previous prime is 1201807912897. The next prime is 1201807912909. The reversal of 1201807912900 is 92197081021.

The square root of 1201807912900 is 1096270.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 325741864644 + 876066048256 = 570738^2 + 935984^2 .

It is not an unprimeable number, because it can be changed into a prime (1201807912909) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 76731070 + ... + 76746730.

Almost surely, 2^{1201807912900} is an apocalyptic number.

1201807912900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201807912900 is the 1096270-th square number.

It is an amenable number.

1201807912900 is an abundant number, since it is smaller than the sum of its proper divisors (1832092356227).

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

1201807912900 is an frugal number, since it uses more digits than its factorization.

1201807912900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31350 (or 15675 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 40.

The spelling of 1201807912900 in words is "one trillion, two hundred one billion, eight hundred seven million, nine hundred twelve thousand, nine hundred".