1220672170215 has 24 divisors (see below), whose sum is σ = 2119877370000. Its totient is φ = 649780354944.

The previous prime is 1220672170187. The next prime is 1220672170247. The reversal of 1220672170215 is 5120712760221.

1220672170215 is a `hidden beast` number, since 1 + 2 + 206 + 72 + 170 + 215 = 666.

It is not a de Polignac number, because 1220672170215 - 2⁵ = 1220672170183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220672170215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25909590 + ... + 25956659.

It is an arithmetic number, because the mean of its divisors is an integer number (88328223750).

Almost surely, 2^{1220672170215} is an apocalyptic number.

1220672170215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220672170215 is a deficient number, since it is larger than the sum of its proper divisors (899205199785).

1220672170215 is a wasteful number, since it uses less digits than its factorization.

1220672170215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51866783 (or 51866780 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 1220672170215 in words is "one trillion, two hundred twenty billion, six hundred seventy-two million, one hundred seventy thousand, two hundred fifteen".