22021312220202 has 32 divisors (see below), whose sum is σ = 45239241703104. Its totient is φ = 7141056249600.

The previous prime is 22021312220147. The next prime is 22021312220203. The reversal of 22021312220202 is 20202221312022.

It is not an unprimeable number, because it can be changed into a prime (22021312220203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5277199 + ... + 8478882.

It is an arithmetic number, because the mean of its divisors is an integer number (1413726303222).

Almost surely, 2^{22021312220202} is an apocalyptic number.

22021312220202 is an abundant number, since it is smaller than the sum of its proper divisors (23217929482902).

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

22021312220202 is a wasteful number, since it uses less digits than its factorization.

22021312220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13763334.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22021312220202 its reverse (20202221312022), we get a palindrome (42223533532224).

The spelling of 22021312220202 in words is "twenty-two trillion, twenty-one billion, three hundred twelve million, two hundred twenty thousand, two hundred two".