16220022 has 64 divisors (see below), whose sum is σ = 40664064. Its totient is φ = 4199040.

The previous prime is 16219981. The next prime is 16220069. The reversal of 16220022 is 22002261.

It is a super-2 number, since 2×16220022² = 526178227360968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16219983 and 16220010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33063 + ... + 33549.

It is an arithmetic number, because the mean of its divisors is an integer number (635376).

Almost surely, 2^16220022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16220022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20332032).

16220022 is an abundant number, since it is smaller than the sum of its proper divisors (24444042).

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

16220022 is a wasteful number, since it uses less digits than its factorization.

16220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 16220022 is about 4027.4088444060. The cubic root of 16220022 is about 253.1339987046.

Adding to 16220022 its reverse (22002261), we get a palindrome (38222283).

The spelling of 16220022 in words is "sixteen million, two hundred twenty thousand, twenty-two".