121001101012111 has 8 divisors (see below), whose sum is σ = 122157692274240. Its totient is φ = 119846014751232.

The previous prime is 121001101012093. The next prime is 121001101012133. The reversal of 121001101012111 is 111210101100121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121001101012111 - 2⁷ = 121001101011983 is a prime.

It is a super-2 number, since 2×121001101012111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121001101012091 and 121001101012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001101012171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376088746 + ... + 376410343.

It is an arithmetic number, because the mean of its divisors is an integer number (15269711534280).

Almost surely, 2^{121001101012111} is an apocalyptic number.

121001101012111 is a deficient number, since it is larger than the sum of its proper divisors (1156591262129).

121001101012111 is a wasteful number, since it uses less digits than its factorization.

121001101012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752500625.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 121001101012111 its reverse (111210101100121), we get a palindrome (232211202112232).

The spelling of 121001101012111 in words is "one hundred twenty-one trillion, one billion, one hundred one million, twelve thousand, one hundred eleven".