16222122 has 24 divisors (see below), whose sum is σ = 40169376. Its totient is φ = 4634856.

The previous prime is 16222121. The next prime is 16222127. The reversal of 16222122 is 22122261.

16222122 is a `hidden beast` number, since 1 + 622 + 21 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 16222095 and 16222104.

It is not an unprimeable number, because it can be changed into a prime (16222121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64248 + ... + 64499.

It is an arithmetic number, because the mean of its divisors is an integer number (1673724).

Almost surely, 2^16222122 is an apocalyptic number.

16222122 is an abundant number, since it is smaller than the sum of its proper divisors (23947254).

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

16222122 is a wasteful number, since it uses less digits than its factorization.

16222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128762 (or 128759 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 16222122 is about 4027.6695495038. The cubic root of 16222122 is about 253.1449226203.

Adding to 16222122 its reverse (22122261), we get a palindrome (38344383).

The spelling of 16222122 in words is "sixteen million, two hundred twenty-two thousand, one hundred twenty-two".