121112100121101 has 16 divisors (see below), whose sum is σ = 166590909617664. Its totient is φ = 78206916654144.

The previous prime is 121112100121087. The next prime is 121112100121123. The reversal of 121112100121101 is 101121001211121.

It is not a de Polignac number, because 121112100121101 - 2¹³ = 121112100112909 is a prime.

It is a super-3 number, since 3×121112100121101³ (a number of 43 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112100129101) 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, 2446387806 + ... + 2446437311.

It is an arithmetic number, because the mean of its divisors is an integer number (10411931851104).

Almost surely, 2^{121112100121101} is an apocalyptic number.

It is an amenable number.

121112100121101 is a deficient number, since it is larger than the sum of its proper divisors (45478809496563).

121112100121101 is a wasteful number, since it uses less digits than its factorization.

121112100121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4892825380.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121112100121101 its reverse (101121001211121), we get a palindrome (222233101332222).

The spelling of 121112100121101 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred million, one hundred twenty-one thousand, one hundred one".