109998322722 has 18 divisors (see below), whose sum is σ = 238332748017. Its totient is φ = 36665638536.

The previous prime is 109998322669. The next prime is 109998322727. The reversal of 109998322722 is 227223899901.

It can be written as a sum of positive squares in 2 ways, for example, as 83527358121 + 26470964601 = 289011^2 + 162699^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=234519.

It is a super-2 number, since 2×109998322722² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109998322727) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1368028 + ... + 1446200.

Almost surely, 2^109998322722 is an apocalyptic number.

109998322722 is an abundant number, since it is smaller than the sum of its proper divisors (128334425295).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109998322722 is an frugal number, since it uses more digits than its factorization.

109998322722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156354 (or 78178 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 109998322722 in words is "one hundred nine billion, nine hundred ninety-eight million, three hundred twenty-two thousand, seven hundred twenty-two".