22131331004 has 6 divisors (see below), whose sum is σ = 38729829264. Its totient is φ = 11065665500.

The previous prime is 22131331003. The next prime is 22131331021. The reversal of 22131331004 is 40013313122.

It is a super-2 number, since 2×22131331004² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131331003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766416372 + ... + 2766416379.

It is an arithmetic number, because the mean of its divisors is an integer number (6454971544).

Almost surely, 2^22131331004 is an apocalyptic number.

It is an amenable number.

22131331004 is a deficient number, since it is larger than the sum of its proper divisors (16598498260).

22131331004 is a wasteful number, since it uses less digits than its factorization.

22131331004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532832755 (or 5532832753 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22131331004 its reverse (40013313122), we get a palindrome (62144644126).

The spelling of 22131331004 in words is "twenty-two billion, one hundred thirty-one million, three hundred thirty-one thousand, four".