20221220202 has 16 divisors (see below), whose sum is σ = 40448540160. Its totient is φ = 6739390112.

The previous prime is 20221220171. The next prime is 20221220203. The reversal of 20221220202 is 20202212202.

It is not an unprimeable number, because it can be changed into a prime (20221220203) 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, 210483 + ... + 291110.

It is an arithmetic number, because the mean of its divisors is an integer number (2528033760).

Almost surely, 2^20221220202 is an apocalyptic number.

20221220202 is an abundant number, since it is smaller than the sum of its proper divisors (20227319958).

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

20221220202 is a wasteful number, since it uses less digits than its factorization.

20221220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508317.

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

Adding to 20221220202 its reverse (20202212202), we get a palindrome (40423432404).

The spelling of 20221220202 in words is "twenty billion, two hundred twenty-one million, two hundred twenty thousand, two hundred two".