20220010021021 has 4 divisors (see below), whose sum is σ = 20220116416192. Its totient is φ = 20219903625852.

The previous prime is 20220010021019. The next prime is 20220010021033. The reversal of 20220010021021 is 12012001002202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20220010021021 - 2¹ = 20220010021019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220010020992 and 20220010021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220010081021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52912005 + ... + 53292778.

It is an arithmetic number, because the mean of its divisors is an integer number (5055029104048).

Almost surely, 2^{20220010021021} is an apocalyptic number.

It is an amenable number.

20220010021021 is a deficient number, since it is larger than the sum of its proper divisors (106395171).

20220010021021 is a wasteful number, since it uses less digits than its factorization.

20220010021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106395170.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20220010021021 its reverse (12012001002202), we get a palindrome (32232011023223).

The spelling of 20220010021021 in words is "twenty trillion, two hundred twenty billion, ten million, twenty-one thousand, twenty-one".