121111100012107 has 2 divisors, whose sum is σ = 121111100012108. Its totient is φ = 121111100012106.

The previous prime is 121111100012099. The next prime is 121111100012251. The reversal of 121111100012107 is 701210001111121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121111100012107 - 2³ = 121111100012099 is a prime.

It is a super-2 number, since 2×121111100012107² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121111100912107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555550006053 + 60555550006054.

It is an arithmetic number, because the mean of its divisors is an integer number (60555550006054).

Almost surely, 2^{121111100012107} is an apocalyptic number.

121111100012107 is a deficient number, since it is larger than the sum of its proper divisors (1).

121111100012107 is an equidigital number, since it uses as much as digits as its factorization.

121111100012107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 19.

Adding to 121111100012107 its reverse (701210001111121), we get a palindrome (822321101123228).

The spelling of 121111100012107 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred million, twelve thousand, one hundred seven".