122251099 has 2 divisors, whose sum is σ = 122251100. Its totient is φ = 122251098.

The previous prime is 122251091. The next prime is 122251109. The reversal of 122251099 is 990152221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122251099 - 2³ = 122251091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122251099.

It is not a weakly prime, because it can be changed into another prime (122251091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61125549 + 61125550.

It is an arithmetic number, because the mean of its divisors is an integer number (61125550).

Almost surely, 2^122251099 is an apocalyptic number.

122251099 is a deficient number, since it is larger than the sum of its proper divisors (1).

122251099 is an equidigital number, since it uses as much as digits as its factorization.

122251099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 122251099 is about 11056.7218921342. The cubic root of 122251099 is about 496.3075981256.

The spelling of 122251099 in words is "one hundred twenty-two million, two hundred fifty-one thousand, ninety-nine".