1210210002101 has 8 divisors (see below), whose sum is σ = 1284442536024. Its totient is φ = 1136315658240.

The previous prime is 1210210002083. The next prime is 1210210002161. The reversal of 1210210002101 is 1012000120121.

It can be written as a sum of positive squares in 4 ways, for example, as 1806675025 + 1208403327076 = 42505^2 + 1099274^2 .

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 1210210002101 - 2¹⁸ = 1210209739957 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 (1210210002161) 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, 84540140 + ... + 84554453.

It is an arithmetic number, because the mean of its divisors is an integer number (160555317003).

Almost surely, 2^{1210210002101} is an apocalyptic number.

It is an amenable number.

1210210002101 is a deficient number, since it is larger than the sum of its proper divisors (74232533923).

1210210002101 is a wasteful number, since it uses less digits than its factorization.

1210210002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169095031.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1210210002101 its reverse (1012000120121), we get a palindrome (2222210122222).

The spelling of 1210210002101 in words is "one trillion, two hundred ten billion, two hundred ten million, two thousand, one hundred one".