2231061612 has 144 divisors (see below), whose sum is σ = 5843819520. Its totient is φ = 661799424.

The previous prime is 2231061607. The next prime is 2231061683. The reversal of 2231061612 is 2161601322.

2231061612 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 3×2231061612³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8482993 + ... + 8483255.

It is an arithmetic number, because the mean of its divisors is an integer number (40582080).

Almost surely, 2^2231061612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231061612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2921909760).

2231061612 is an abundant number, since it is smaller than the sum of its proper divisors (3612757908).

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

2231061612 is a wasteful number, since it uses less digits than its factorization.

2231061612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2231061612 is about 47234.1149170809. The cubic root of 2231061612 is about 1306.6838433405.

Adding to 2231061612 its reverse (2161601322), we get a palindrome (4392662934).

The spelling of 2231061612 in words is "two billion, two hundred thirty-one million, sixty-one thousand, six hundred twelve".