210201102221021 has 8 divisors (see below), whose sum is σ = 218311999424640. Its totient is φ = 202241810572768.

The previous prime is 210201102221009. The next prime is 210201102221059. The reversal of 210201102221021 is 120122201102012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210201102221021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210201102221821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37901386016 + ... + 37901391561.

It is an arithmetic number, because the mean of its divisors is an integer number (27288999928080).

Almost surely, 2^{210201102221021} is an apocalyptic number.

It is an amenable number.

210201102221021 is a deficient number, since it is larger than the sum of its proper divisors (8110897203619).

210201102221021 is an equidigital number, since it uses as much as digits as its factorization.

210201102221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75802777683.

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

Adding to 210201102221021 its reverse (120122201102012), we get a palindrome (330323303323033).

The spelling of 210201102221021 in words is "two hundred ten trillion, two hundred one billion, one hundred two million, two hundred twenty-one thousand, twenty-one".