22621007004 has 48 divisors (see below), whose sum is σ = 55823806080. Its totient is φ = 7109605440.

The previous prime is 22621006963. The next prime is 22621007029. The reversal of 22621007004 is 40070012622.

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, 186999 + ... + 283214.

It is an arithmetic number, because the mean of its divisors is an integer number (1162995960).

Almost surely, 2^22621007004 is an apocalyptic number.

It is an amenable number.

22621007004 is an abundant number, since it is smaller than the sum of its proper divisors (33202799076).

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

22621007004 is a wasteful number, since it uses less digits than its factorization.

22621007004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470450 (or 470448 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

Adding to 22621007004 its reverse (40070012622), we get a palindrome (62691019626).

The spelling of 22621007004 in words is "twenty-two billion, six hundred twenty-one million, seven thousand, four".