121227919684 has 27 divisors (see below), whose sum is σ = 214281792543. Its totient is φ = 60010567368.

The previous prime is 121227919661. The next prime is 121227919739. The reversal of 121227919684 is 486919722121.

The square root of 121227919684 is 348178.

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

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 74509279 + ... + 74510905.

Almost surely, 2^121227919684 is an apocalyptic number.

121227919684 is the 348178-th square number.

It is an amenable number.

121227919684 is a deficient number, since it is larger than the sum of its proper divisors (93053872859).

121227919684 is an frugal number, since it uses more digits than its factorization.

121227919684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472 (or 1736 counting only the distinct ones).

The product of its digits is 870912, while the sum is 52.

The spelling of 121227919684 in words is "one hundred twenty-one billion, two hundred twenty-seven million, nine hundred nineteen thousand, six hundred eighty-four".