122088221 has 2 divisors, whose sum is σ = 122088222. Its totient is φ = 122088220.

The previous prime is 122088217. The next prime is 122088229. The reversal of 122088221 is 122880221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64176121 + 57912100 = 8011^2 + 7610^2 .

It is a cyclic number.

It is not a de Polignac number, because 122088221 - 2² = 122088217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122088229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61044110 + 61044111.

It is an arithmetic number, because the mean of its divisors is an integer number (61044111).

Almost surely, 2^122088221 is an apocalyptic number.

It is an amenable number.

122088221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122088221 is an equidigital number, since it uses as much as digits as its factorization.

122088221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 122088221 is about 11049.3538725122. The cubic root of 122088221 is about 496.0870860897.

The spelling of 122088221 in words is "one hundred twenty-two million, eighty-eight thousand, two hundred twenty-one".