20021022002023 has 32 divisors (see below), whose sum is σ = 23307166067328. Its totient is φ = 16842626611200.

The previous prime is 20021022001973. The next prime is 20021022002027. The reversal of 20021022002023 is 32020022012002.

It is a cyclic number.

It is not a de Polignac number, because 20021022002023 - 2¹⁷ = 20021021870951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20021022001988 and 20021022002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021022002027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1022671011 + ... + 1022690587.

It is an arithmetic number, because the mean of its divisors is an integer number (728348939604).

Almost surely, 2^{20021022002023} is an apocalyptic number.

20021022002023 is a deficient number, since it is larger than the sum of its proper divisors (3286144065305).

20021022002023 is a wasteful number, since it uses less digits than its factorization.

20021022002023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24763.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20021022002023 its reverse (32020022012002), we get a palindrome (52041044014025).

The spelling of 20021022002023 in words is "twenty trillion, twenty-one billion, twenty-two million, two thousand, twenty-three".