20210002220101 has 2 divisors, whose sum is σ = 20210002220102. Its totient is φ = 20210002220100.

The previous prime is 20210002220069. The next prime is 20210002220117. The reversal of 20210002220101 is 10102220001202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20013105907201 + 196896312900 = 4473601^2 + 443730^2 .

It is a cyclic number.

It is not a de Polignac number, because 20210002220101 - 2⁵ = 20210002220069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210002220131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105001110050 + 10105001110051.

It is an arithmetic number, because the mean of its divisors is an integer number (10105001110051).

Almost surely, 2^{20210002220101} is an apocalyptic number.

It is an amenable number.

20210002220101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210002220101 is an equidigital number, since it uses as much as digits as its factorization.

20210002220101 is an evil number, because the sum of its binary digits is even.

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

Adding to 20210002220101 its reverse (10102220001202), we get a palindrome (30312222221303).

The spelling of 20210002220101 in words is "twenty trillion, two hundred ten billion, two million, two hundred twenty thousand, one hundred one".