210102020112101 has 8 divisors (see below), whose sum is σ = 226270295516664. Its totient is φ = 193934684928960.

The previous prime is 210102020112079. The next prime is 210102020112109. The reversal of 210102020112101 is 101211020201012.

It can be written as a sum of positive squares in 4 ways, for example, as 16847954599876 + 193254065512225 = 4104626^2 + 13901585^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 210102020112101 - 2³⁸ = 209827142205157 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 (210102020112109) 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, 234591206 + ... + 235485111.

It is an arithmetic number, because the mean of its divisors is an integer number (28283786939583).

Almost surely, 2^{210102020112101} is an apocalyptic number.

It is an amenable number.

210102020112101 is a deficient number, since it is larger than the sum of its proper divisors (16168275404563).

210102020112101 is a wasteful number, since it uses less digits than its factorization.

210102020112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470110711.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210102020112101 its reverse (101211020201012), we get a palindrome (311313040313113).

The spelling of 210102020112101 in words is "two hundred ten trillion, one hundred two billion, twenty million, one hundred twelve thousand, one hundred one".