2231212033 has 4 divisors (see below), whose sum is σ = 2232702000. Its totient is φ = 2229722068.

The previous prime is 2231212021. The next prime is 2231212069. The reversal of 2231212033 is 3302121322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2231212033 - 2¹³ = 2231203841 is a prime.

It is a super-3 number, since 3×2231212033³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231212033.

It is not an unprimeable number, because it can be changed into a prime (2231212013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742735 + ... + 745732.

It is an arithmetic number, because the mean of its divisors is an integer number (558175500).

Almost surely, 2^2231212033 is an apocalyptic number.

It is an amenable number.

2231212033 is a deficient number, since it is larger than the sum of its proper divisors (1489967).

2231212033 is a wasteful number, since it uses less digits than its factorization.

2231212033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489966.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2231212033 is about 47235.7071821731. The cubic root of 2231212033 is about 1306.7132087739.

Adding to 2231212033 its reverse (3302121322), we get a palindrome (5533333355).

The spelling of 2231212033 in words is "two billion, two hundred thirty-one million, two hundred twelve thousand, thirty-three".