2223129312 has 72 divisors (see below), whose sum is σ = 6492920616. Its totient is φ = 721011456.

The previous prime is 2223129247. The next prime is 2223129313. The reversal of 2223129312 is 2139213222.

2223129312 is a `hidden beast` number, since 2 + 223 + 129 + 312 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223129313) 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, 93658 + ... + 114969.

It is an arithmetic number, because the mean of its divisors is an integer number (90179453).

Almost surely, 2^2223129312 is an apocalyptic number.

It is an amenable number.

2223129312 is an abundant number, since it is smaller than the sum of its proper divisors (4269791304).

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

2223129312 is a wasteful number, since it uses less digits than its factorization.

2223129312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208680 (or 208669 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 2223129312 is about 47150.0722374844. The cubic root of 2223129312 is about 1305.1334130570.

The spelling of 2223129312 in words is "two billion, two hundred twenty-three million, one hundred twenty-nine thousand, three hundred twelve".