2220402044256 has 96 divisors (see below), whose sum is σ = 6421379037696. Its totient is φ = 666187200000.

The previous prime is 2220402044243. The next prime is 2220402044317. The reversal of 2220402044256 is 6524402040222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10302520 + ... + 10515831.

It is an arithmetic number, because the mean of its divisors is an integer number (66889364976).

Almost surely, 2^{2220402044256} is an apocalyptic number.

It is an amenable number.

2220402044256 is an abundant number, since it is smaller than the sum of its proper divisors (4200976993440).

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

2220402044256 is a wasteful number, since it uses less digits than its factorization.

2220402044256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20818476 (or 20818468 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 2220402044256 its reverse (6524402040222), we get a palindrome (8744804084478).

The spelling of 2220402044256 in words is "two trillion, two hundred twenty billion, four hundred two million, forty-four thousand, two hundred fifty-six".