22122051 has 16 divisors (see below), whose sum is σ = 33840384. Its totient is φ = 12592224.

The previous prime is 22122047. The next prime is 22122053. The reversal of 22122051 is 15022122.

It is not a de Polignac number, because 22122051 - 2² = 22122047 is a prime.

It is a plaindrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 22122051.

It is not an unprimeable number, because it can be changed into a prime (22122053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3916 + ... + 7718.

It is an arithmetic number, because the mean of its divisors is an integer number (2115024).

Almost surely, 2^22122051 is an apocalyptic number.

22122051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22122051 is a deficient number, since it is larger than the sum of its proper divisors (11718333).

22122051 is a wasteful number, since it uses less digits than its factorization.

22122051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 22122051 is about 4703.4084449471. The cubic root of 22122051 is about 280.7211470256.

Adding to 22122051 its reverse (15022122), we get a palindrome (37144173).

The spelling of 22122051 in words is "twenty-two million, one hundred twenty-two thousand, fifty-one".