12223123100 has 36 divisors (see below), whose sum is σ = 26584147464. Its totient is φ = 4878194880.

The previous prime is 12223123061. The next prime is 12223123117. The reversal of 12223123100 is 132132221.

It is a super-2 number, since 2×12223123100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93659 + ... + 182258.

Almost surely, 2^12223123100 is an apocalyptic number.

12223123100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12223123100 is an abundant number, since it is smaller than the sum of its proper divisors (14361024364).

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

12223123100 is a wasteful number, since it uses less digits than its factorization.

12223123100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276374 (or 276367 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12223123100 its reverse (132132221), we get a palindrome (12355255321).

The spelling of 12223123100 in words is "twelve billion, two hundred twenty-three million, one hundred twenty-three thousand, one hundred".