121210110002101 has 16 divisors (see below), whose sum is σ = 125822459347200. Its totient is φ = 116682612310080.

The previous prime is 121210110002071. The next prime is 121210110002141. The reversal of 121210110002101 is 101200011012121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121210110002101 - 2³¹ = 121207962518453 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 (121210110002141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89775175 + ... + 91115323.

It is an arithmetic number, because the mean of its divisors is an integer number (7863903709200).

Almost surely, 2^{121210110002101} is an apocalyptic number.

It is an amenable number.

121210110002101 is a deficient number, since it is larger than the sum of its proper divisors (4612349345099).

121210110002101 is a wasteful number, since it uses less digits than its factorization.

121210110002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371804.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121210110002101 its reverse (101200011012121), we get a palindrome (222410121014222).

The spelling of 121210110002101 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred ten million, two thousand, one hundred one".