2211251212244 has 12 divisors (see below), whose sum is σ = 3872664026868. Its totient is φ = 1104775776000.

The previous prime is 2211251212237. The next prime is 2211251212319. The reversal of 2211251212244 is 4422121521122.

It can be written as a sum of positive squares in 2 ways, for example, as 218100208144 + 1993151004100 = 467012^2 + 1411790^2 .

It is a congruent number.

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, 212451677 + ... + 212462084.

It is an arithmetic number, because the mean of its divisors is an integer number (322722002239).

Almost surely, 2^{2211251212244} is an apocalyptic number.

It is an amenable number.

2211251212244 is a deficient number, since it is larger than the sum of its proper divisors (1661412814624).

2211251212244 is a wasteful number, since it uses less digits than its factorization.

2211251212244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424915066 (or 424915064 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

Adding to 2211251212244 its reverse (4422121521122), we get a palindrome (6633372733366).

The spelling of 2211251212244 in words is "two trillion, two hundred eleven billion, two hundred fifty-one million, two hundred twelve thousand, two hundred forty-four".