221122301123231 has 2 divisors, whose sum is σ = 221122301123232. Its totient is φ = 221122301123230.

The previous prime is 221122301123203. The next prime is 221122301123239. The reversal of 221122301123231 is 132321103221122.

221122301123231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221122301123231 - 2⁶ = 221122301123167 is a prime.

It is a super-2 number, since 2×221122301123231² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221122301123231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221122301123239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561150561615 + 110561150561616.

It is an arithmetic number, because the mean of its divisors is an integer number (110561150561616).

Almost surely, 2^{221122301123231} is an apocalyptic number.

221122301123231 is a deficient number, since it is larger than the sum of its proper divisors (1).

221122301123231 is an equidigital number, since it uses as much as digits as its factorization.

221122301123231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 221122301123231 its reverse (132321103221122), we get a palindrome (353443404344353).

The spelling of 221122301123231 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, three hundred one million, one hundred twenty-three thousand, two hundred thirty-one".