22133155 has 16 divisors (see below), whose sum is σ = 29263104. Its totient is φ = 15936480.

The previous prime is 22133129. The next prime is 22133173. The reversal of 22133155 is 55133122.

It is a de Polignac number, because none of the positive numbers 2^k-22133155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3712 + ... + 7618.

It is an arithmetic number, because the mean of its divisors is an integer number (1828944).

Almost surely, 2^22133155 is an apocalyptic number.

22133155 is a deficient number, since it is larger than the sum of its proper divisors (7129949).

22133155 is a wasteful number, since it uses less digits than its factorization.

22133155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026.

The product of its digits is 900, while the sum is 22.

The square root of 22133155 is about 4704.5887174120. The cubic root of 22133155 is about 280.7681078043.

Adding to 22133155 its reverse (55133122), we get a palindrome (77266277).

It can be divided in two parts, 22 and 133155, that multiplied together give a triangular number (2929410 = T₂₄₂₀).

The spelling of 22133155 in words is "twenty-two million, one hundred thirty-three thousand, one hundred fifty-five".