22202021004 has 12 divisors (see below), whose sum is σ = 51804715704. Its totient is φ = 7400673664.

The previous prime is 22202020969. The next prime is 22202021081. The reversal of 22202021004 is 40012020222.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925084197 + ... + 925084220.

It is an arithmetic number, because the mean of its divisors is an integer number (4317059642).

Almost surely, 2^22202021004 is an apocalyptic number.

It is an amenable number.

22202021004 is an abundant number, since it is smaller than the sum of its proper divisors (29602694700).

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

22202021004 is a wasteful number, since it uses less digits than its factorization.

22202021004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850168424 (or 1850168422 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22202021004 its reverse (40012020222), we get a palindrome (62214041226).

The spelling of 22202021004 in words is "twenty-two billion, two hundred two million, twenty-one thousand, four".