22021100404 has 24 divisors (see below), whose sum is σ = 40414550400. Its totient is φ = 10478898144.

The previous prime is 22021100401. The next prime is 22021100411. The reversal of 22021100404 is 40400112022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021100401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583099 + ... + 619714.

It is an arithmetic number, because the mean of its divisors is an integer number (1683939600).

Almost surely, 2^22021100404 is an apocalyptic number.

It is an amenable number.

22021100404 is a deficient number, since it is larger than the sum of its proper divisors (18393449996).

22021100404 is a wasteful number, since it uses less digits than its factorization.

22021100404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203039 (or 1203037 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22021100404 its reverse (40400112022), we get a palindrome (62421212426).

The spelling of 22021100404 in words is "twenty-two billion, twenty-one million, one hundred thousand, four hundred four".