2231111472 has 20 divisors (see below), whose sum is σ = 5763704760. Its totient is φ = 743703808.

The previous prime is 2231111471. The next prime is 2231111521. The reversal of 2231111472 is 2741111322.

It is a super-3 number, since 3×2231111472³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2231111471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23240697 + ... + 23240792.

It is an arithmetic number, because the mean of its divisors is an integer number (288185238).

Almost surely, 2^2231111472 is an apocalyptic number.

It is an amenable number.

2231111472 is an abundant number, since it is smaller than the sum of its proper divisors (3532593288).

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

2231111472 is a wasteful number, since it uses less digits than its factorization.

2231111472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46481500 (or 46481494 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 2231111472 is about 47234.6427106208. The cubic root of 2231111472 is about 1306.6935772374.

Adding to 2231111472 its reverse (2741111322), we get a palindrome (4972222794).

The spelling of 2231111472 in words is "two billion, two hundred thirty-one million, one hundred eleven thousand, four hundred seventy-two".