1210100110101 has 96 divisors (see below), whose sum is σ = 1887928848000. Its totient is φ = 744644689920.

The previous prime is 1210100110069. The next prime is 1210100110111. The reversal of 1210100110101 is 1010110010121.

It is not a de Polignac number, because 1210100110101 - 2⁵ = 1210100110069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210100110111) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 358971946 + ... + 358975316.

It is an arithmetic number, because the mean of its divisors is an integer number (19665925500).

Almost surely, 2^{1210100110101} is an apocalyptic number.

It is an amenable number.

1210100110101 is a deficient number, since it is larger than the sum of its proper divisors (677828737899).

1210100110101 is a wasteful number, since it uses less digits than its factorization.

1210100110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811 (or 3808 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1210100110101 its reverse (1010110010121), we get a palindrome (2220210120222).

It can be divided in two parts, 1210100 and 110101, that added together give a square (1320201 = 1149²).

The spelling of 1210100110101 in words is "one trillion, two hundred ten billion, one hundred million, one hundred ten thousand, one hundred one".