2121232244 has 12 divisors (see below), whose sum is σ = 3715529664. Its totient is φ = 1059652344.

The previous prime is 2121232241. The next prime is 2121232259. The reversal of 2121232244 is 4422321212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121232241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235982 + ... + 244805.

It is an arithmetic number, because the mean of its divisors is an integer number (309627472).

Almost surely, 2^2121232244 is an apocalyptic number.

It is an amenable number.

2121232244 is a deficient number, since it is larger than the sum of its proper divisors (1594297420).

2121232244 is a wasteful number, since it uses less digits than its factorization.

2121232244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481894 (or 481892 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 2121232244 is about 46056.8371037352. The cubic root of 2121232244 is about 1284.8805056764.

Adding to 2121232244 its reverse (4422321212), we get a palindrome (6543553456).

The spelling of 2121232244 in words is "two billion, one hundred twenty-one million, two hundred thirty-two thousand, two hundred forty-four".