127221964 has 6 divisors (see below), whose sum is σ = 222638444. Its totient is φ = 63610980.

The previous prime is 127221959. The next prime is 127221971. The reversal of 127221964 is 469122721.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15902742 + ... + 15902749.

Almost surely, 2^127221964 is an apocalyptic number.

It is an amenable number.

127221964 is a deficient number, since it is larger than the sum of its proper divisors (95416480).

127221964 is a wasteful number, since it uses less digits than its factorization.

127221964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31805495 (or 31805493 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 127221964 is about 11279.2714303717. The cubic root of 127221964 is about 502.9452357749.

The spelling of 127221964 in words is "one hundred twenty-seven million, two hundred twenty-one thousand, nine hundred sixty-four".