121220463633671 has 16 divisors (see below), whose sum is σ = 128610449820000. Its totient is φ = 113859304086528.

The previous prime is 121220463633613. The next prime is 121220463633677. The reversal of 121220463633671 is 176336364022121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121220463633671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220463633677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967618625 + ... + 967743893.

It is an arithmetic number, because the mean of its divisors is an integer number (8038153113750).

Almost surely, 2^{121220463633671} is an apocalyptic number.

121220463633671 is a deficient number, since it is larger than the sum of its proper divisors (7389986186329).

121220463633671 is a wasteful number, since it uses less digits than its factorization.

121220463633671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239858.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 121220463633671 in words is "one hundred twenty-one trillion, two hundred twenty billion, four hundred sixty-three million, six hundred thirty-three thousand, six hundred seventy-one".