16222170 has 32 divisors (see below), whose sum is σ = 39227328. Its totient is φ = 4293248.

The previous prime is 16222127. The next prime is 16222211. The reversal of 16222170 is 7122261.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2137 + ... + 6083.

It is an arithmetic number, because the mean of its divisors is an integer number (1225854).

Almost surely, 2^16222170 is an apocalyptic number.

16222170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16222170 is an abundant number, since it is smaller than the sum of its proper divisors (23005158).

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

16222170 is a wasteful number, since it uses less digits than its factorization.

16222170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 16222170 is about 4027.6755082802. The cubic root of 16222170 is about 253.1451722988.

Subtracting from 16222170 its reverse (7122261), we obtain a palindrome (9099909).

The spelling of 16222170 in words is "sixteen million, two hundred twenty-two thousand, one hundred seventy".