1022020110021 has 8 divisors (see below), whose sum is σ = 1362773570080. Its totient is φ = 681306694992.

The previous prime is 1022020109989. The next prime is 1022020110061. The reversal of 1022020110021 is 1200110202201.

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

It is not a de Polignac number, because 1022020110021 - 2⁵ = 1022020109989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022020109979 and 1022020110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022020110061) 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, 9951655 + ... + 10053828.

It is an arithmetic number, because the mean of its divisors is an integer number (170346696260).

Almost surely, 2^{1022020110021} is an apocalyptic number.

It is an amenable number.

1022020110021 is a deficient number, since it is larger than the sum of its proper divisors (340753460059).

1022020110021 is a wasteful number, since it uses less digits than its factorization.

1022020110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20022515.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1022020110021 its reverse (1200110202201), we get a palindrome (2222130312222).

The spelling of 1022020110021 in words is "one trillion, twenty-two billion, twenty million, one hundred ten thousand, twenty-one".