112121112222001 has 8 divisors (see below), whose sum is σ = 118022344236800. Its totient is φ = 106219892291760.

The previous prime is 112121112221953. The next prime is 112121112222083. The reversal of 112121112222001 is 100222211121211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 112121112222001 - 2³¹ = 112118964738353 is a prime.

It is a super-2 number, since 2×112121112222001² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112121112222001.

It is not an unprimeable number, because it can be changed into a prime (112121112292001) 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, 20866195 + ... + 25683463.

It is an arithmetic number, because the mean of its divisors is an integer number (14752793029600).

Almost surely, 2^{112121112222001} is an apocalyptic number.

It is an amenable number.

112121112222001 is a deficient number, since it is larger than the sum of its proper divisors (5901232014799).

112121112222001 is a wasteful number, since it uses less digits than its factorization.

112121112222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042279.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 112121112222001 its reverse (100222211121211), we get a palindrome (212343323343212).

The spelling of 112121112222001 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty-two thousand, one".