22181053 has 4 divisors (see below), whose sum is σ = 22227840. Its totient is φ = 22134268.

The previous prime is 22181023. The next prime is 22181059. The reversal of 22181053 is 35018122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35018122 = 2 ⋅17509061.

It is a cyclic number.

It is not a de Polignac number, because 22181053 - 2¹⁷ = 22049981 is a prime.

It is a super-2 number, since 2×22181053² = 983998224377618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22181059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22675 + ... + 23632.

It is an arithmetic number, because the mean of its divisors is an integer number (5556960).

Almost surely, 2^22181053 is an apocalyptic number.

It is an amenable number.

22181053 is a deficient number, since it is larger than the sum of its proper divisors (46787).

22181053 is an equidigital number, since it uses as much as digits as its factorization.

22181053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46786.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 22181053 is about 4709.6765281705. The cubic root of 22181053 is about 280.9704971073.

Adding to 22181053 its reverse (35018122), we get a palindrome (57199175).

The spelling of 22181053 in words is "twenty-two million, one hundred eighty-one thousand, fifty-three".