22231121202 has 48 divisors (see below), whose sum is σ = 49736973312. Its totient is φ = 7169057280.

The previous prime is 22231121177. The next prime is 22231121203. The reversal of 22231121202 is 20212113222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22231121203) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3504978 + ... + 3511314.

It is an arithmetic number, because the mean of its divisors is an integer number (1036186944).

Almost surely, 2^22231121202 is an apocalyptic number.

22231121202 is an abundant number, since it is smaller than the sum of its proper divisors (27505852110).

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

22231121202 is a wasteful number, since it uses less digits than its factorization.

22231121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12663 (or 12660 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22231121202 its reverse (20212113222), we get a palindrome (42443234424).

The spelling of 22231121202 in words is "twenty-two billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred two".