20102022021 has 32 divisors (see below), whose sum is σ = 28653350400. Its totient is φ = 12499444800.

The previous prime is 20102022019. The next prime is 20102022023. The reversal of 20102022021 is 12022020102.

It is an interprime number because it is at equal distance from previous prime (20102022019) and next prime (20102022023).

It is not a de Polignac number, because 20102022021 - 2¹ = 20102022019 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20102021988 and 20102022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102022023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1020750 + ... + 1040256.

It is an arithmetic number, because the mean of its divisors is an integer number (895417200).

Almost surely, 2^20102022021 is an apocalyptic number.

It is an amenable number.

20102022021 is a deficient number, since it is larger than the sum of its proper divisors (8551328379).

20102022021 is a wasteful number, since it uses less digits than its factorization.

20102022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19809.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20102022021 its reverse (12022020102), we get a palindrome (32124042123).

The spelling of 20102022021 in words is "twenty billion, one hundred two million, twenty-two thousand, twenty-one".