121301199172 has 12 divisors (see below), whose sum is σ = 214378852716. Its totient is φ = 60050098400.

The previous prime is 121301199167. The next prime is 121301199197. The reversal of 121301199172 is 271991103121.

It can be written as a sum of positive squares in 2 ways, for example, as 112799252736 + 8501946436 = 335856^2 + 92206^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150124843 + ... + 150125650.

It is an arithmetic number, because the mean of its divisors is an integer number (17864904393).

Almost surely, 2^121301199172 is an apocalyptic number.

It is an amenable number.

121301199172 is a deficient number, since it is larger than the sum of its proper divisors (93077653544).

121301199172 is a wasteful number, since it uses less digits than its factorization.

121301199172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300250598 (or 300250596 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 37.

The spelling of 121301199172 in words is "one hundred twenty-one billion, three hundred one million, one hundred ninety-nine thousand, one hundred seventy-two".