121202010999 has 24 divisors (see below), whose sum is σ = 179820031040. Its totient is φ = 78609279168.

The previous prime is 121202010997. The next prime is 121202011001. The reversal of 121202010999 is 999010202121.

It is an interprime number because it is at equal distance from previous prime (121202010997) and next prime (121202011001).

It is not a de Polignac number, because 121202010999 - 2¹ = 121202010997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202010991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6340434 + ... + 6359520.

Almost surely, 2^121202010999 is an apocalyptic number.

121202010999 is a deficient number, since it is larger than the sum of its proper divisors (58618020041).

121202010999 is a wasteful number, since it uses less digits than its factorization.

121202010999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38199 (or 38196 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 121202010999 in words is "one hundred twenty-one billion, two hundred two million, ten thousand, nine hundred ninety-nine".