123213222200 has 96 divisors (see below), whose sum is σ = 313781590800. Its totient is φ = 44786595840.

The previous prime is 123213222179. The next prime is 123213222233. The reversal of 123213222200 is 2222312321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 526214 + ... + 723413.

Almost surely, 2^123213222200 is an apocalyptic number.

123213222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123213222200 is an abundant number, since it is smaller than the sum of its proper divisors (190568368600).

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

123213222200 is a wasteful number, since it uses less digits than its factorization.

123213222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249689 (or 1249680 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 123213222200 its reverse (2222312321), we get a palindrome (125435534521).

The spelling of 123213222200 in words is "one hundred twenty-three billion, two hundred thirteen million, two hundred twenty-two thousand, two hundred".