84210222 has 16 divisors (see below), whose sum is σ = 175743360. Its totient is φ = 26849592.

The previous prime is 84210193. The next prime is 84210241. The reversal of 84210222 is 22201248.

It is a happy number.

It is a super-2 number, since 2×84210222² = 14182722978578568, which contains 22 as substring.

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, 304972 + ... + 305247.

It is an arithmetic number, because the mean of its divisors is an integer number (10983960).

Almost surely, 2^84210222 is an apocalyptic number.

84210222 is an abundant number, since it is smaller than the sum of its proper divisors (91533138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84210222 is a wasteful number, since it uses less digits than its factorization.

84210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610247.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 84210222 is about 9176.6127737853. The cubic root of 84210222 is about 438.3169553783.

The spelling of 84210222 in words is "eighty-four million, two hundred ten thousand, two hundred twenty-two".