121132110111 has 8 divisors (see below), whose sum is σ = 161626436784. Its totient is φ = 80696261760.

The previous prime is 121132110107. The next prime is 121132110139. The reversal of 121132110111 is 111011231121.

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

It is not a de Polignac number, because 121132110111 - 2² = 121132110107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121132110191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14614746 + ... + 14623031.

It is an arithmetic number, because the mean of its divisors is an integer number (20203304598).

Almost surely, 2^121132110111 is an apocalyptic number.

121132110111 is a deficient number, since it is larger than the sum of its proper divisors (40494326673).

121132110111 is a wasteful number, since it uses less digits than its factorization.

121132110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29239161.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 121132110111 its reverse (111011231121), we get a palindrome (232143341232).

The spelling of 121132110111 in words is "one hundred twenty-one billion, one hundred thirty-two million, one hundred ten thousand, one hundred eleven".