201210211102101 has 4 divisors (see below), whose sum is σ = 268280281469472. Its totient is φ = 134140140734732.

The previous prime is 201210211102099. The next prime is 201210211102157. The reversal of 201210211102101 is 101201112012102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201210211102101 - 2¹ = 201210211102099 is a prime.

It is a super-2 number, since 2×201210211102101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201210211106101) 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, 33535035183681 + ... + 33535035183686.

It is an arithmetic number, because the mean of its divisors is an integer number (67070070367368).

Almost surely, 2^{201210211102101} is an apocalyptic number.

It is an amenable number.

201210211102101 is a deficient number, since it is larger than the sum of its proper divisors (67070070367371).

201210211102101 is an equidigital number, since it uses as much as digits as its factorization.

201210211102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67070070367370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201210211102101 its reverse (101201112012102), we get a palindrome (302411323114203).

The spelling of 201210211102101 in words is "two hundred one trillion, two hundred ten billion, two hundred eleven million, one hundred two thousand, one hundred one".