1210102110221 has 8 divisors (see below), whose sum is σ = 1270758021504. Its totient is φ = 1150116430320.

The previous prime is 1210102110209. The next prime is 1210102110227. The reversal of 1210102110221 is 1220112010121.

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 1210102110221 - 2¹⁰ = 1210102109197 is a prime.

It is a super-2 number, since 2×1210102110221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210102110196 and 1210102110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210102110227) 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, 167554145 + ... + 167561366.

It is an arithmetic number, because the mean of its divisors is an integer number (158844752688).

Almost surely, 2^{1210102110221} is an apocalyptic number.

It is an amenable number.

1210102110221 is a deficient number, since it is larger than the sum of its proper divisors (60655911283).

1210102110221 is a wasteful number, since it uses less digits than its factorization.

1210102110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335115691.

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

Adding to 1210102110221 its reverse (1220112010121), we get a palindrome (2430214120342).

The spelling of 1210102110221 in words is "one trillion, two hundred ten billion, one hundred two million, one hundred ten thousand, two hundred twenty-one".