22221031004 has 12 divisors (see below), whose sum is σ = 39041733528. Its totient is φ = 11066250000.

The previous prime is 22221031003. The next prime is 22221031033. The reversal of 22221031004 is 40013012222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221031003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11065247 + ... + 11067254.

It is an arithmetic number, because the mean of its divisors is an integer number (3253477794).

Almost surely, 2^22221031004 is an apocalyptic number.

It is an amenable number.

22221031004 is a deficient number, since it is larger than the sum of its proper divisors (16820702524).

22221031004 is a wasteful number, since it uses less digits than its factorization.

22221031004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22132756 (or 22132754 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22221031004 its reverse (40013012222), we get a palindrome (62234043226).

The spelling of 22221031004 in words is "twenty-two billion, two hundred twenty-one million, thirty-one thousand, four".