121880666410 has 32 divisors (see below), whose sum is σ = 224889365520. Its totient is φ = 47544127488.

The previous prime is 121880666393. The next prime is 121880666527. The reversal of 121880666410 is 14666088121.

It can be written as a sum of positive squares in 8 ways, for example, as 13599524689 + 108281141721 = 116617^2 + 329061^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 873007 + ... + 1002946.

Almost surely, 2^121880666410 is an apocalyptic number.

121880666410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121880666410 is a deficient number, since it is larger than the sum of its proper divisors (103008699110).

121880666410 is a wasteful number, since it uses less digits than its factorization.

121880666410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876122.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 121880666410 in words is "one hundred twenty-one billion, eight hundred eighty million, six hundred sixty-six thousand, four hundred ten".