99722125106 has 4 divisors (see below), whose sum is σ = 149583187662. Its totient is φ = 49861062552.

The previous prime is 99722125091. The next prime is 99722125141. The reversal of 99722125106 is 60152122799.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68531386225 + 31190738881 = 261785^2 + 176609^2 .

It is a super-2 number, since 2×99722125106² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24930531275 + ... + 24930531278.

Almost surely, 2^99722125106 is an apocalyptic number.

99722125106 is a deficient number, since it is larger than the sum of its proper divisors (49861062556).

99722125106 is a wasteful number, since it uses less digits than its factorization.

99722125106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49861062555.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 99722125106 in words is "ninety-nine billion, seven hundred twenty-two million, one hundred twenty-five thousand, one hundred six".