201022001220101 has 2 divisors, whose sum is σ = 201022001220102. Its totient is φ = 201022001220100.

The previous prime is 201022001220059. The next prime is 201022001220121. The reversal of 201022001220101 is 101022100220102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120587829600001 + 80434171620100 = 10981249^2 + 8968510^2 .

It is a cyclic number.

It is not a de Polignac number, because 201022001220101 - 2¹⁸ = 201022000957957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201022001220121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100511000610050 + 100511000610051.

It is an arithmetic number, because the mean of its divisors is an integer number (100511000610051).

Almost surely, 2^{201022001220101} is an apocalyptic number.

It is an amenable number.

201022001220101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201022001220101 is an equidigital number, since it uses as much as digits as its factorization.

201022001220101 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 14.

Adding to 201022001220101 its reverse (101022100220102), we get a palindrome (302044101440203).

Subtracting from 201022001220101 its reverse (101022100220102), we obtain a palindrome (99999900999999).

It can be divided in two parts, 201022001 and 220101, that added together give a palindrome (201242102).

The spelling of 201022001220101 in words is "two hundred one trillion, twenty-two billion, one million, two hundred twenty thousand, one hundred one".