121110100210001 has 32 divisors (see below), whose sum is σ = 146121547968000. Its totient is φ = 98193677041152.

The previous prime is 121110100209997. The next prime is 121110100210019. The reversal of 121110100210001 is 100012001011121.

It is not a de Polignac number, because 121110100210001 - 2² = 121110100209997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110100210091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28780181 + ... + 32718786.

It is an arithmetic number, because the mean of its divisors is an integer number (4566298374000).

Almost surely, 2^{121110100210001} is an apocalyptic number.

It is an amenable number.

121110100210001 is a deficient number, since it is larger than the sum of its proper divisors (25011447757999).

121110100210001 is a wasteful number, since it uses less digits than its factorization.

121110100210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61499201.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121110100210001 its reverse (100012001011121), we get a palindrome (221122101221122).

The spelling of 121110100210001 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred million, two hundred ten thousand, one".