3021222255640 has 64 divisors (see below), whose sum is σ = 7086508197120. Its totient is φ = 1157926080000.

The previous prime is 3021222255617. The next prime is 3021222255643. The reversal of 3021222255640 is 465522221203.

It is a junction number, because it is equal to n+sod(n) for n = 3021222255596 and 3021222255605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021222255643) 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, 11936491 + ... + 12186970.

It is an arithmetic number, because the mean of its divisors is an integer number (110726690580).

Almost surely, 2^{3021222255640} is an apocalyptic number.

It is an amenable number.

3021222255640 is an abundant number, since it is smaller than the sum of its proper divisors (4065285941480).

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

3021222255640 is a wasteful number, since it uses less digits than its factorization.

3021222255640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24123604 (or 24123600 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 3021222255640 its reverse (465522221203), we get a palindrome (3486744476843).

The spelling of 3021222255640 in words is "three trillion, twenty-one billion, two hundred twenty-two million, two hundred fifty-five thousand, six hundred forty".