53222111 has 4 divisors (see below), whose sum is σ = 53492472. Its totient is φ = 52951752.

The previous prime is 53222101. The next prime is 53222129. The reversal of 53222111 is 11122235.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11122235 = 5 ⋅2224447.

It is a cyclic number.

It is not a de Polignac number, because 53222111 - 2²² = 49027807 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 53222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53222101) 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, 134885 + ... + 135278.

It is an arithmetic number, because the mean of its divisors is an integer number (13373118).

Almost surely, 2^53222111 is an apocalyptic number.

53222111 is a deficient number, since it is larger than the sum of its proper divisors (270361).

53222111 is a wasteful number, since it uses less digits than its factorization.

53222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270360.

The product of its digits is 120, while the sum is 17.

The square root of 53222111 is about 7295.3485865995. The cubic root of 53222111 is about 376.1525688936.

Adding to 53222111 its reverse (11122235), we get a palindrome (64344346).

The spelling of 53222111 in words is "fifty-three million, two hundred twenty-two thousand, one hundred eleven".