121101100022111 has 16 divisors (see below), whose sum is σ = 135183993043968. Its totient is φ = 107530542571200.

The previous prime is 121101100022059. The next prime is 121101100022117. The reversal of 121101100022111 is 111220001101121.

It is a cyclic number.

It is not a de Polignac number, because 121101100022111 - 2²² = 121101095827807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101100022117) 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, 47360210 + ... + 49851696.

It is an arithmetic number, because the mean of its divisors is an integer number (8448999565248).

Almost surely, 2^{121101100022111} is an apocalyptic number.

121101100022111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121101100022111 is a deficient number, since it is larger than the sum of its proper divisors (14082893021857).

121101100022111 is a wasteful number, since it uses less digits than its factorization.

121101100022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594302.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121101100022111 its reverse (111220001101121), we get a palindrome (232321101123232).

The spelling of 121101100022111 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred million, twenty-two thousand, one hundred eleven".