122251121 has 2 divisors, whose sum is σ = 122251122. Its totient is φ = 122251120.

The previous prime is 122251117. The next prime is 122251133. The reversal of 122251121 is 121152221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66912400 + 55338721 = 8180^2 + 7439^2 .

It is a cyclic number.

It is not a de Polignac number, because 122251121 - 2² = 122251117 is a prime.

It is a super-3 number, since 3×122251121³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122251121.

It is not a weakly prime, because it can be changed into another prime (122151121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61125560 + 61125561.

It is an arithmetic number, because the mean of its divisors is an integer number (61125561).

Almost surely, 2^122251121 is an apocalyptic number.

It is an amenable number.

122251121 is a deficient number, since it is larger than the sum of its proper divisors (1).

122251121 is an equidigital number, since it uses as much as digits as its factorization.

122251121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80, while the sum is 17.

The square root of 122251121 is about 11056.7228870041. The cubic root of 122251121 is about 496.3076278970.

The spelling of 122251121 in words is "one hundred twenty-two million, two hundred fifty-one thousand, one hundred twenty-one".