121010102221999 has 2 divisors, whose sum is σ = 121010102222000. Its totient is φ = 121010102221998.

The previous prime is 121010102221979. The next prime is 121010102222059. The reversal of 121010102221999 is 999122201010121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121010102221999 - 2¹³ = 121010102213807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121010102221919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505051110999 + 60505051111000.

It is an arithmetic number, because the mean of its divisors is an integer number (60505051111000).

Almost surely, 2^{121010102221999} is an apocalyptic number.

121010102221999 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010102221999 is an equidigital number, since it uses as much as digits as its factorization.

121010102221999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 40.

The spelling of 121010102221999 in words is "one hundred twenty-one trillion, ten billion, one hundred two million, two hundred twenty-one thousand, nine hundred ninety-nine".