2231121244 has 24 divisors (see below), whose sum is σ = 4278532608. Its totient is φ = 1009593840.

The previous prime is 2231121241. The next prime is 2231121281. The reversal of 2231121244 is 4421211322.

2231121244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231121244³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231121241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103882 + ... + 123505.

It is an arithmetic number, because the mean of its divisors is an integer number (178272192).

Almost surely, 2^2231121244 is an apocalyptic number.

It is an amenable number.

2231121244 is a deficient number, since it is larger than the sum of its proper divisors (2047411364).

2231121244 is a wasteful number, since it uses less digits than its factorization.

2231121244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227625 (or 227623 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 2231121244 is about 47234.7461515355. The cubic root of 2231121244 is about 1306.6954849549.

Adding to 2231121244 its reverse (4421211322), we get a palindrome (6652332566).

The spelling of 2231121244 in words is "two billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred forty-four".