870221322215 has 32 divisors (see below), whose sum is σ = 1245795275904. Its totient is φ = 571077527040.

The previous prime is 870221322151. The next prime is 870221322227. The reversal of 870221322215 is 512223122078.

It is not a de Polignac number, because 870221322215 - 2⁶ = 870221322151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5429084 + ... + 5587073.

It is an arithmetic number, because the mean of its divisors is an integer number (38931102372).

Almost surely, 2^870221322215 is an apocalyptic number.

870221322215 is a deficient number, since it is larger than the sum of its proper divisors (375573953689).

870221322215 is a wasteful number, since it uses less digits than its factorization.

870221322215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11016267.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 870221322215 in words is "eight hundred seventy billion, two hundred twenty-one million, three hundred twenty-two thousand, two hundred fifteen".