121120202111999 has 2 divisors, whose sum is σ = 121120202112000. Its totient is φ = 121120202111998.

The previous prime is 121120202111959. The next prime is 121120202112029. The reversal of 121120202111999 is 999111202021121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121120202111999 - 2⁴⁴ = 103528016067583 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121120202111959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560101055999 + 60560101056000.

It is an arithmetic number, because the mean of its divisors is an integer number (60560101056000).

Almost surely, 2^{121120202111999} is an apocalyptic number.

121120202111999 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120202111999 is an equidigital number, since it uses as much as digits as its factorization.

121120202111999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 121120202111999 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred two million, one hundred eleven thousand, nine hundred ninety-nine".