101201402102021 has 12 divisors (see below), whose sum is σ = 109728951593220. Its totient is φ = 93293923582080.

The previous prime is 101201402101991. The next prime is 101201402102077. The reversal of 101201402102021 is 120201204102101.

It can be written as a sum of positive squares in 6 ways, for example, as 60658956484996 + 40542445617025 = 7788386^2 + 6367295^2 .

It is not a de Polignac number, because 101201402102021 - 2³⁴ = 101184222232837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201402102621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393317426 + ... + 393574643.

It is an arithmetic number, because the mean of its divisors is an integer number (9144079299435).

Almost surely, 2^{101201402102021} is an apocalyptic number.

It is an amenable number.

101201402102021 is a deficient number, since it is larger than the sum of its proper divisors (8527549491199).

101201402102021 is an equidigital number, since it uses as much as digits as its factorization.

101201402102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786892856 (or 786892843 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101201402102021 its reverse (120201204102101), we get a palindrome (221402606204122).

The spelling of 101201402102021 in words is "one hundred one trillion, two hundred one billion, four hundred two million, one hundred two thousand, twenty-one".