253211222 has 16 divisors (see below), whose sum is σ = 414716112. Its totient is φ = 114993120.

The previous prime is 253211213. The next prime is 253211261. The reversal of 253211222 is 222112352.

It is a junction number, because it is equal to n+sod(n) for n = 253211194 and 253211203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23588 + ... + 32600.

It is an arithmetic number, because the mean of its divisors is an integer number (25919757).

Almost surely, 2^253211222 is an apocalyptic number.

253211222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

253211222 is a deficient number, since it is larger than the sum of its proper divisors (161504890).

253211222 is a wasteful number, since it uses less digits than its factorization.

253211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10303.

The product of its digits is 480, while the sum is 20.

The square root of 253211222 is about 15912.6120420250. The cubic root of 253211222 is about 632.6463154659.

Adding to 253211222 its reverse (222112352), we get a palindrome (475323574).

The spelling of 253211222 in words is "two hundred fifty-three million, two hundred eleven thousand, two hundred twenty-two".