22155030004 has 24 divisors (see below), whose sum is σ = 39143969480. Its totient is φ = 10971127296.

The previous prime is 22155029989. The next prime is 22155030011. The reversal of 22155030004 is 40003055122.

It can be written as a sum of positive squares in 4 ways, for example, as 4037331600 + 18117698404 = 63540^2 + 134602^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131304 + ... + 1150720.

Almost surely, 2^22155030004 is an apocalyptic number.

It is an amenable number.

22155030004 is a deficient number, since it is larger than the sum of its proper divisors (16988939476).

22155030004 is a wasteful number, since it uses less digits than its factorization.

22155030004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22147 (or 22145 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 22155030004 its reverse (40003055122), we get a palindrome (62158085126).

The spelling of 22155030004 in words is "twenty-two billion, one hundred fifty-five million, thirty thousand, four".