20021021202022 has 32 divisors (see below), whose sum is σ = 30139676928000. Its totient is φ = 9974540046240.

The previous prime is 20021021201977. The next prime is 20021021202043. The reversal of 20021021202022 is 22020212012002.

It is a junction number, because it is equal to n+sod(n) for n = 20021021201987 and 20021021202005.

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, 1780748733 + ... + 1780759975.

It is an arithmetic number, because the mean of its divisors is an integer number (941864904000).

Almost surely, 2^{20021021202022} is an apocalyptic number.

20021021202022 is a deficient number, since it is larger than the sum of its proper divisors (10118655725978).

20021021202022 is a wasteful number, since it uses less digits than its factorization.

20021021202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14428.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20021021202022 its reverse (22020212012002), we get a palindrome (42041233214024).

The spelling of 20021021202022 in words is "twenty trillion, twenty-one billion, twenty-one million, two hundred two thousand, twenty-two".