20220010020121 has 4 divisors (see below), whose sum is σ = 20220021662644. Its totient is φ = 20219998377600.

The previous prime is 20220010020083. The next prime is 20220010020131. The reversal of 20220010020121 is 12102001002202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17445157027600 + 2774852992521 = 4176740^2 + 1665789^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220010020121 - 2¹⁷ = 20220009889049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220010020131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2634720 + ... + 6883441.

It is an arithmetic number, because the mean of its divisors is an integer number (5055005415661).

Almost surely, 2^{20220010020121} is an apocalyptic number.

It is an amenable number.

20220010020121 is a deficient number, since it is larger than the sum of its proper divisors (11642523).

20220010020121 is an equidigital number, since it uses as much as digits as its factorization.

20220010020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11642522.

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

Adding to 20220010020121 its reverse (12102001002202), we get a palindrome (32322011022323).

The spelling of 20220010020121 in words is "twenty trillion, two hundred twenty billion, ten million, twenty thousand, one hundred twenty-one".