99121002122 has 8 divisors (see below), whose sum is σ = 148684298436. Its totient is φ = 49559569312.

The previous prime is 99121002109. The next prime is 99121002157. The reversal of 99121002122 is 22120012199.

It can be written as a sum of positive squares in 2 ways, for example, as 98915911081 + 205091041 = 314509^2 + 14321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324293 + ... + 550824.

Almost surely, 2^99121002122 is an apocalyptic number.

99121002122 is a deficient number, since it is larger than the sum of its proper divisors (49563296314).

99121002122 is a wasteful number, since it uses less digits than its factorization.

99121002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931752.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 99121002122 in words is "ninety-nine billion, one hundred twenty-one million, two thousand, one hundred twenty-two".