20220404022021 has 16 divisors (see below), whose sum is σ = 30815147779200. Its totient is φ = 11553352750848.

The previous prime is 20220404021999. The next prime is 20220404022047. The reversal of 20220404022021 is 12022040402202.

It is not a de Polignac number, because 20220404022021 - 2³⁰ = 20219330280197 is a prime.

It is a super-4 number, since 4×20220404022021⁴ (a number of 54 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220404023021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48279576 + ... + 48696593.

It is an arithmetic number, because the mean of its divisors is an integer number (1925946736200).

Almost surely, 2^{20220404022021} is an apocalyptic number.

20220404022021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20220404022021 is a deficient number, since it is larger than the sum of its proper divisors (10594743757179).

20220404022021 is an equidigital number, since it uses as much as digits as its factorization.

20220404022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96986108.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20220404022021 its reverse (12022040402202), we get a palindrome (32242444424223).

The spelling of 20220404022021 in words is "twenty trillion, two hundred twenty billion, four hundred four million, twenty-two thousand, twenty-one".