2251234020244 has 24 divisors (see below), whose sum is σ = 4326654780000. Its totient is φ = 1016420482080.

The previous prime is 2251234020209. The next prime is 2251234020283. The reversal of 2251234020244 is 4420204321522.

It is a happy number.

It is a super-2 number, since 2×2251234020244² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171686094 + ... + 171699205.

It is an arithmetic number, because the mean of its divisors is an integer number (180277282500).

Almost surely, 2^{2251234020244} is an apocalyptic number.

It is an amenable number.

2251234020244 is a deficient number, since it is larger than the sum of its proper divisors (2075420759756).

2251234020244 is a wasteful number, since it uses less digits than its factorization.

2251234020244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343385463 (or 343385461 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 2251234020244 its reverse (4420204321522), we get a palindrome (6671438341766).

The spelling of 2251234020244 in words is "two trillion, two hundred fifty-one billion, two hundred thirty-four million, twenty thousand, two hundred forty-four".