22021012002256 has 80 divisors (see below), whose sum is σ = 43912997156160. Its totient is φ = 10691755683840.

The previous prime is 22021012002203. The next prime is 22021012002257. The reversal of 22021012002256 is 65220021012022.

It is a super-3 number, since 3×22021012002256³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 22021012002256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021012002257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107505696 + ... + 107710336.

It is an arithmetic number, because the mean of its divisors is an integer number (548912464452).

Almost surely, 2^{22021012002256} is an apocalyptic number.

It is an amenable number.

22021012002256 is a deficient number, since it is larger than the sum of its proper divisors (21891985153904).

22021012002256 is a wasteful number, since it uses less digits than its factorization.

22021012002256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205604 (or 205598 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 22021012002256 its reverse (65220021012022), we get a palindrome (87241033014278).

The spelling of 22021012002256 in words is "twenty-two trillion, twenty-one billion, twelve million, two thousand, two hundred fifty-six".