1223112300 has 36 divisors (see below), whose sum is σ = 3538872456. Its totient is φ = 326163200.

The previous prime is 1223112283. The next prime is 1223112301. The reversal of 1223112300 is 32113221.

1223112300 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1223112300² = 2992007396822580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1223112300.

It is not an unprimeable number, because it can be changed into a prime (1223112301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2038221 + ... + 2038820.

Almost surely, 2^1223112300 is an apocalyptic number.

1223112300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223112300 is an abundant number, since it is smaller than the sum of its proper divisors (2315760156).

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

1223112300 is a wasteful number, since it uses less digits than its factorization.

1223112300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077058 (or 4077051 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1223112300 is about 34973.0224601764. The cubic root of 1223112300 is about 1069.4375883870.

Adding to 1223112300 its reverse (32113221), we get a palindrome (1255225521).

It can be divided in two parts, 12231 and 12300, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 1223112300 in words is "one billion, two hundred twenty-three million, one hundred twelve thousand, three hundred".