221122112153 has 2 divisors, whose sum is σ = 221122112154. Its totient is φ = 221122112152.

The previous prime is 221122112087. The next prime is 221122112161. The reversal of 221122112153 is 351211221122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218811579529 + 2310532624 = 467773^2 + 48068^2 .

It is a cyclic number.

It is not a de Polignac number, because 221122112153 - 2³⁰ = 220048370329 is a prime.

It is not a weakly prime, because it can be changed into another prime (221122112753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561056076 + 110561056077.

It is an arithmetic number, because the mean of its divisors is an integer number (110561056077).

Almost surely, 2^221122112153 is an apocalyptic number.

It is an amenable number.

221122112153 is a deficient number, since it is larger than the sum of its proper divisors (1).

221122112153 is an equidigital number, since it uses as much as digits as its factorization.

221122112153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 23.

Adding to 221122112153 its reverse (351211221122), we get a palindrome (572333333275).

The spelling of 221122112153 in words is "two hundred twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, one hundred fifty-three".