2115221104444 has 12 divisors (see below), whose sum is σ = 4230442208944. Its totient is φ = 906523330464.

The previous prime is 2115221104429. The next prime is 2115221104453. The reversal of 2115221104444 is 4444011225112.

2115221104444 is an admirable number.

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, 37771805409 + ... + 37771805464.

Almost surely, 2^{2115221104444} is an apocalyptic number.

It is an amenable number.

2115221104444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2115221104444 is a wasteful number, since it uses less digits than its factorization.

2115221104444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75543610884 (or 75543610882 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

Adding to 2115221104444 its reverse (4444011225112), we get a palindrome (6559232329556).

The spelling of 2115221104444 in words is "two trillion, one hundred fifteen billion, two hundred twenty-one million, one hundred four thousand, four hundred forty-four".