522221870 has 16 divisors (see below), whose sum is σ = 943027488. Its totient is φ = 208215840.

The previous prime is 522221849. The next prime is 522221891. The reversal of 522221870 is 78122225.

It is an interprime number because it is at equal distance from previous prime (522221849) and next prime (522221891).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80849 + ... + 87068.

It is an arithmetic number, because the mean of its divisors is an integer number (58939218).

Almost surely, 2^522221870 is an apocalyptic number.

522221870 is a deficient number, since it is larger than the sum of its proper divisors (420805618).

522221870 is a wasteful number, since it uses less digits than its factorization.

522221870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168235.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 522221870 is about 22852.1742948018. The cubic root of 522221870 is about 805.2888486729.

The spelling of 522221870 in words is "five hundred twenty-two million, two hundred twenty-one thousand, eight hundred seventy".