122216253 has 4 divisors (see below), whose sum is σ = 162955008. Its totient is φ = 81477500.

The previous prime is 122216249. The next prime is 122216257. The reversal of 122216253 is 352612221.

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.

It is an interprime number because it is at equal distance from previous prime (122216249) and next prime (122216257).

It is a cyclic number.

It is not a de Polignac number, because 122216253 - 2² = 122216249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122216257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20369373 + ... + 20369378.

It is an arithmetic number, because the mean of its divisors is an integer number (40738752).

Almost surely, 2^122216253 is an apocalyptic number.

It is an amenable number.

122216253 is a deficient number, since it is larger than the sum of its proper divisors (40738755).

122216253 is an equidigital number, since it uses as much as digits as its factorization.

122216253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40738754.

The product of its digits is 1440, while the sum is 24.

The square root of 122216253 is about 11055.1459963223. The cubic root of 122216253 is about 496.2604384187.

Adding to 122216253 its reverse (352612221), we get a palindrome (474828474).

The spelling of 122216253 in words is "one hundred twenty-two million, two hundred sixteen thousand, two hundred fifty-three".