1210797641100 has 72 divisors (see below), whose sum is σ = 3655556029440. Its totient is φ = 308841135680.

The previous prime is 1210797641087. The next prime is 1210797641147. The reversal of 1210797641100 is 11467970121.

It is a happy number.

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, 87732060 + ... + 87745859.

It is an arithmetic number, because the mean of its divisors is an integer number (50771611520).

Almost surely, 2^{1210797641100} is an apocalyptic number.

1210797641100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210797641100 is an abundant number, since it is smaller than the sum of its proper divisors (2444758388340).

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

1210797641100 is a wasteful number, since it uses less digits than its factorization.

1210797641100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175477959 (or 175477952 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 39.

The spelling of 1210797641100 in words is "one trillion, two hundred ten billion, seven hundred ninety-seven million, six hundred forty-one thousand, one hundred".