127835822666212 has 6 divisors (see below), whose sum is σ = 223712689665878. Its totient is φ = 63917911333104.

The previous prime is 127835822666131. The next prime is 127835822666213. The reversal of 127835822666212 is 212666228538721.

It can be written as a sum of positive squares in only one way, i.e., 99520057248676 + 28315765417536 = 9975974^2 + 5321256^2 .

It is not an unprimeable number, because it can be changed into a prime (127835822666213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15979477833273 + ... + 15979477833280.

Almost surely, 2^{127835822666212} is an apocalyptic number.

It is an amenable number.

127835822666212 is a deficient number, since it is larger than the sum of its proper divisors (95876866999666).

127835822666212 is a wasteful number, since it uses less digits than its factorization.

127835822666212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31958955666557 (or 31958955666555 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 61.

The spelling of 127835822666212 in words is "one hundred twenty-seven trillion, eight hundred thirty-five billion, eight hundred twenty-two million, six hundred sixty-six thousand, two hundred twelve".