6221574238981 has 16 divisors (see below), whose sum is σ = 6256694949120. Its totient is φ = 6186570730560.

The previous prime is 6221574238949. The next prime is 6221574239051. The reversal of 6221574238981 is 1898324751226.

It is a cyclic number.

It is not a de Polignac number, because 6221574238981 - 2⁵ = 6221574238949 is a prime.

It is a super-2 number, since 2×6221574238981² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221574238081) 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, 272160330 + ... + 272183188.

It is an arithmetic number, because the mean of its divisors is an integer number (391043434320).

Almost surely, 2^{6221574238981} is an apocalyptic number.

It is an amenable number.

6221574238981 is a deficient number, since it is larger than the sum of its proper divisors (35120710139).

6221574238981 is a wasteful number, since it uses less digits than its factorization.

6221574238981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25356.

The product of its digits is 11612160, while the sum is 58.

The spelling of 6221574238981 in words is "six trillion, two hundred twenty-one billion, five hundred seventy-four million, two hundred thirty-eight thousand, nine hundred eighty-one".