112121122101 has 4 divisors (see below), whose sum is σ = 149494829472. Its totient is φ = 74747414732.

The previous prime is 112121122097. The next prime is 112121122103. The reversal of 112121122101 is 101221121211.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 112121122101 - 2² = 112121122097 is a prime.

It is a super-2 number, since 2×112121122101² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121122103) 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, 18686853681 + ... + 18686853686.

It is an arithmetic number, because the mean of its divisors is an integer number (37373707368).

Almost surely, 2^112121122101 is an apocalyptic number.

It is an amenable number.

112121122101 is a deficient number, since it is larger than the sum of its proper divisors (37373707371).

112121122101 is an equidigital number, since it uses as much as digits as its factorization.

112121122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37373707370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 112121122101 its reverse (101221121211), we get a palindrome (213342243312).

The spelling of 112121122101 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred one".