112221212001 has 16 divisors (see below), whose sum is σ = 158319551040. Its totient is φ = 70509312000.

The previous prime is 112221211997. The next prime is 112221212017. The reversal of 112221212001 is 100212122211.

It is not a de Polignac number, because 112221212001 - 2² = 112221211997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112221210001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5089500 + ... + 5111501.

It is an arithmetic number, because the mean of its divisors is an integer number (9894971940).

Almost surely, 2^112221212001 is an apocalyptic number.

It is an amenable number.

112221212001 is a deficient number, since it is larger than the sum of its proper divisors (46098339039).

112221212001 is a wasteful number, since it uses less digits than its factorization.

112221212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10201216.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112221212001 its reverse (100212122211), we get a palindrome (212433334212).

The spelling of 112221212001 in words is "one hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, one".