20102022011021 has 8 divisors (see below), whose sum is σ = 20592417203064. Its totient is φ = 19611631674880.

The previous prime is 20102022010969. The next prime is 20102022011041. The reversal of 20102022011021 is 12011022020102.

It can be written as a sum of positive squares in 4 ways, for example, as 1729911498121 + 18372110512900 = 1315261^2 + 4286270^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20102022011021 - 2²² = 20102017816717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102022010987 and 20102022011005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102022011041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8011205 + ... + 10216821.

It is an arithmetic number, because the mean of its divisors is an integer number (2574052150383).

Almost surely, 2^{20102022011021} is an apocalyptic number.

It is an amenable number.

20102022011021 is a deficient number, since it is larger than the sum of its proper divisors (490395192043).

20102022011021 is a wasteful number, since it uses less digits than its factorization.

20102022011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427951.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20102022011021 its reverse (12011022020102), we get a palindrome (32113044031123).

The spelling of 20102022011021 in words is "twenty trillion, one hundred two billion, twenty-two million, eleven thousand, twenty-one".