121112100122101 has 16 divisors (see below), whose sum is σ = 139894673159808. Its totient is φ = 103624968793600.

The previous prime is 121112100122081. The next prime is 121112100122107. The reversal of 121112100122101 is 101221001211121.

It is a cyclic number.

It is not a de Polignac number, because 121112100122101 - 2¹⁵ = 121112100089333 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 (121112100122107) 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, 63060456 + ... + 64952638.

It is an arithmetic number, because the mean of its divisors is an integer number (8743417072488).

Almost surely, 2^{121112100122101} is an apocalyptic number.

121112100122101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121112100122101 is a deficient number, since it is larger than the sum of its proper divisors (18782573037707).

121112100122101 is a wasteful number, since it uses less digits than its factorization.

121112100122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234492.

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

Adding to 121112100122101 its reverse (101221001211121), we get a palindrome (222333101333222).

The spelling of 121112100122101 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred million, one hundred twenty-two thousand, one hundred one".