20202021222 has 16 divisors (see below), whose sum is σ = 40546816320. Its totient is φ = 6710211432.

The previous prime is 20202021199. The next prime is 20202021269. The reversal of 20202021222 is 22212020202.

It is a super-2 number, since 2×20202021222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5947072 + ... + 5950467.

It is an arithmetic number, because the mean of its divisors is an integer number (2534176020).

Almost surely, 2^20202021222 is an apocalyptic number.

20202021222 is an abundant number, since it is smaller than the sum of its proper divisors (20344795098).

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

20202021222 is a wasteful number, since it uses less digits than its factorization.

20202021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11897827.

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

Adding to 20202021222 its reverse (22212020202), we get a palindrome (42414041424).

The spelling of 20202021222 in words is "twenty billion, two hundred two million, twenty-one thousand, two hundred twenty-two".