112220121222001 has 48 divisors (see below), whose sum is σ = 128924999136000. Its totient is φ = 97361734579200.

The previous prime is 112220121221959. The next prime is 112220121222017. The reversal of 112220121222001 is 100222121022211.

It is not a de Polignac number, because 112220121222001 - 2²³ = 112220112833393 is a prime.

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 112220121222001.

It is not an unprimeable number, because it can be changed into a prime (112220121222091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206166601 + ... + 206710201.

It is an arithmetic number, because the mean of its divisors is an integer number (2685937482000).

Almost surely, 2^{112220121222001} is an apocalyptic number.

It is an amenable number.

112220121222001 is a deficient number, since it is larger than the sum of its proper divisors (16704877913999).

112220121222001 is a wasteful number, since it uses less digits than its factorization.

112220121222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544154 (or 544141 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 112220121222001 its reverse (100222121022211), we get a palindrome (212442242244212).

The spelling of 112220121222001 in words is "one hundred twelve trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, one".