112121110901 has 4 divisors (see below), whose sum is σ = 112134392832. Its totient is φ = 112107828972.

The previous prime is 112121110891. The next prime is 112121110921. The reversal of 112121110901 is 109011121211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 109011121211 = 31 ⋅3516487781.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112121110901 is a prime.

It is a super-2 number, since 2×112121110901² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121110921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6628295 + ... + 6645188.

It is an arithmetic number, because the mean of its divisors is an integer number (28033598208).

Almost surely, 2^112121110901 is an apocalyptic number.

It is an amenable number.

112121110901 is a deficient number, since it is larger than the sum of its proper divisors (13281931).

112121110901 is an equidigital number, since it uses as much as digits as its factorization.

112121110901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13281930.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 112121110901 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred ten thousand, nine hundred one".