2231212332 has 48 divisors (see below), whose sum is σ = 5628304640. Its totient is φ = 685547712.

The previous prime is 2231212301. The next prime is 2231212339. The reversal of 2231212332 is 2332121322.

It is a happy number.

2231212332 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231212332³ (a number of 29 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2231212299 and 2231212308.

It is not an unprimeable number, because it can be changed into a prime (2231212339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123808 + ... + 140679.

Almost surely, 2^2231212332 is an apocalyptic number.

It is an amenable number.

2231212332 is an abundant number, since it is smaller than the sum of its proper divisors (3397092308).

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

2231212332 is a wasteful number, since it uses less digits than its factorization.

2231212332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264550 (or 264548 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 2231212332 is about 47235.7103471515. The cubic root of 2231212332 is about 1306.7132671439.

Adding to 2231212332 its reverse (2332121322), we get a palindrome (4563333654).

The spelling of 2231212332 in words is "two billion, two hundred thirty-one million, two hundred twelve thousand, three hundred thirty-two".