2231212132 has 12 divisors (see below), whose sum is σ = 3905109936. Its totient is φ = 1115466440.

The previous prime is 2231212097. The next prime is 2231212163. The reversal of 2231212132 is 2312121322.

It is a super-3 number, since 3×2231212132³ (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 3 ways as a sum of consecutive naturals, for example, 6507 + ... + 67117.

It is an arithmetic number, because the mean of its divisors is an integer number (325425828).

Almost surely, 2^2231212132 is an apocalyptic number.

It is an amenable number.

2231212132 is a deficient number, since it is larger than the sum of its proper divisors (1673897804).

2231212132 is a wasteful number, since it uses less digits than its factorization.

2231212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69818 (or 69816 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2231212132 is about 47235.7082301091. The cubic root of 2231212132 is about 1306.7132281004.

Adding to 2231212132 its reverse (2312121322), we get a palindrome (4543333454).

It can be divided in two parts, 2 and 231212132, that multiplied together give a palindrome (462424264).

The spelling of 2231212132 in words is "two billion, two hundred thirty-one million, two hundred twelve thousand, one hundred thirty-two".