22121003236 has 24 divisors (see below), whose sum is σ = 39144119616. Its totient is φ = 10937342880.

The previous prime is 22121003173. The next prime is 22121003239. The reversal of 22121003236 is 63230012122.

It is not an unprimeable number, because it can be changed into a prime (22121003239) 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, 192001 + ... + 284791.

It is an arithmetic number, because the mean of its divisors is an integer number (1631004984).

Almost surely, 2^22121003236 is an apocalyptic number.

It is an amenable number.

22121003236 is a deficient number, since it is larger than the sum of its proper divisors (17023116380).

22121003236 is a wasteful number, since it uses less digits than its factorization.

22121003236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93459 (or 93457 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 22121003236 its reverse (63230012122), we get a palindrome (85351015358).

The spelling of 22121003236 in words is "twenty-two billion, one hundred twenty-one million, three thousand, two hundred thirty-six".