22121100202 has 8 divisors (see below), whose sum is σ = 33187255200. Its totient is φ = 11058681804.

The previous prime is 22121100193. The next prime is 22121100203. The reversal of 22121100202 is 20200112122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22121100203) 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, 919302 + ... + 943057.

It is an arithmetic number, because the mean of its divisors is an integer number (4148406900).

Almost surely, 2^22121100202 is an apocalyptic number.

22121100202 is a deficient number, since it is larger than the sum of its proper divisors (11066154998).

22121100202 is a wasteful number, since it uses less digits than its factorization.

22121100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868300.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22121100202 its reverse (20200112122), we get a palindrome (42321212324).

The spelling of 22121100202 in words is "twenty-two billion, one hundred twenty-one million, one hundred thousand, two hundred two".