111012201102121 has 16 divisors (see below), whose sum is σ = 122123803883328. Its totient is φ = 100073147428800.

The previous prime is 111012201102053. The next prime is 111012201102169. The reversal of 111012201102121 is 121201102210111.

It is a cyclic number.

It is not a de Polignac number, because 111012201102121 - 2⁴³ = 102216108079913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111012201102095 and 111012201102104.

It is not an unprimeable number, because it can be changed into a prime (111012201102521) 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, 64610670 + ... + 66306583.

It is an arithmetic number, because the mean of its divisors is an integer number (7632737742708).

Almost surely, 2^{111012201102121} is an apocalyptic number.

111012201102121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111012201102121 is a deficient number, since it is larger than the sum of its proper divisors (11111602781207).

111012201102121 is a wasteful number, since it uses less digits than its factorization.

111012201102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130917912.

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

Adding to 111012201102121 its reverse (121201102210111), we get a palindrome (232213303312232).

The spelling of 111012201102121 in words is "one hundred eleven trillion, twelve billion, two hundred one million, one hundred two thousand, one hundred twenty-one".