99000000022 has 16 divisors (see below), whose sum is σ = 185142857472. Its totient is φ = 38571428520.

The previous prime is 98999999999. The next prime is 99000000031. The reversal of 99000000022 is 22000000099.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321428418 + ... + 321428725.

It is an arithmetic number, because the mean of its divisors is an integer number (11571428592).

Almost surely, 2^99000000022 is an apocalyptic number.

99000000022 is a deficient number, since it is larger than the sum of its proper divisors (86142857450).

99000000022 is a wasteful number, since it uses less digits than its factorization.

99000000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642857163.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 99000000022 its reverse (22000000099), we get a palindrome (121000000121).

The spelling of 99000000022 in words is "ninety-nine billion, twenty-two", and thus it is an aban number and an uban number.