20021022202222 has 32 divisors (see below), whose sum is σ = 31975278793920. Its totient is φ = 9369205547520.

The previous prime is 20021022202193. The next prime is 20021022202243. The reversal of 20021022202222 is 22220222012002.

It is a self number, because there is not a number n which added to its sum of digits gives 20021022202222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12853647 + ... + 14326837.

It is an arithmetic number, because the mean of its divisors is an integer number (999227462310).

Almost surely, 2^{20021022202222} is an apocalyptic number.

20021022202222 is a deficient number, since it is larger than the sum of its proper divisors (11954256591698).

20021022202222 is a wasteful number, since it uses less digits than its factorization.

20021022202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475436.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20021022202222 its reverse (22220222012002), we get a palindrome (42241244214224).

The spelling of 20021022202222 in words is "twenty trillion, twenty-one billion, twenty-two million, two hundred two thousand, two hundred twenty-two".