123298221900 has 144 divisors (see below), whose sum is σ = 429164476160. Its totient is φ = 26699155200.

The previous prime is 123298221883. The next prime is 123298221941. The reversal of 123298221900 is 9122892321.

It is a super-2 number, since 2×123298221900² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1505191 + ... + 1584990.

Almost surely, 2^123298221900 is an apocalyptic number.

123298221900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123298221900 is an abundant number, since it is smaller than the sum of its proper divisors (305866254260).

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

123298221900 is a wasteful number, since it uses less digits than its factorization.

123298221900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090224 (or 3090217 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 123298221900 in words is "one hundred twenty-three billion, two hundred ninety-eight million, two hundred twenty-one thousand, nine hundred".