210102211020001 has 4 divisors (see below), whose sum is σ = 210103444611604. Its totient is φ = 210100977428400.

The previous prime is 210102211019959. The next prime is 210102211020041. The reversal of 210102211020001 is 100020112201012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142153183685601 + 67949027334400 = 11922801^2 + 8243120^2 .

It is a cyclic number.

It is not a de Polignac number, because 210102211020001 - 2²³ = 210102202631393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210102211020041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616540290 + ... + 616880971.

It is an arithmetic number, because the mean of its divisors is an integer number (52525861152901).

Almost surely, 2^{210102211020001} is an apocalyptic number.

It is an amenable number.

210102211020001 is a deficient number, since it is larger than the sum of its proper divisors (1233591603).

210102211020001 is a wasteful number, since it uses less digits than its factorization.

210102211020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233591602.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210102211020001 its reverse (100020112201012), we get a palindrome (310122323221013).

The spelling of 210102211020001 in words is "two hundred ten trillion, one hundred two billion, two hundred eleven million, twenty thousand, one".