121222100959 has 2 divisors, whose sum is σ = 121222100960. Its totient is φ = 121222100958.

The previous prime is 121222100947. The next prime is 121222101023. The reversal of 121222100959 is 959001222121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121222100959 - 2⁵ = 121222100927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121222100759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611050479 + 60611050480.

It is an arithmetic number, because the mean of its divisors is an integer number (60611050480).

Almost surely, 2^121222100959 is an apocalyptic number.

121222100959 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222100959 is an equidigital number, since it uses as much as digits as its factorization.

121222100959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 121222100959 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred thousand, nine hundred fifty-nine".