123212230000 has 50 divisors (see below), whose sum is σ = 298309154264. Its totient is φ = 49284888000.

The previous prime is 123212229947. The next prime is 123212230013. The reversal of 123212230000 is 32212321.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6150612 + ... + 6170611.

Almost surely, 2^123212230000 is an apocalyptic number.

123212230000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123212230000 is an abundant number, since it is smaller than the sum of its proper divisors (175096924264).

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

123212230000 is an equidigital number, since it uses as much as digits as its factorization.

123212230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12321251 (or 12321230 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 123212230000 its reverse (32212321), we get a palindrome (123244442321).

The spelling of 123212230000 in words is "one hundred twenty-three billion, two hundred twelve million, two hundred thirty thousand".