112212021001 has 4 divisors (see below), whose sum is σ = 114948899604. Its totient is φ = 109475142400.

The previous prime is 112212020933. The next prime is 112212021043. The reversal of 112212021001 is 100120212211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21815585401 + 90396435600 = 147701^2 + 300660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112212021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112212021401) 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, 1368439240 + ... + 1368439321.

It is an arithmetic number, because the mean of its divisors is an integer number (28737224901).

Almost surely, 2^112212021001 is an apocalyptic number.

It is an amenable number.

112212021001 is a deficient number, since it is larger than the sum of its proper divisors (2736878603).

112212021001 is an equidigital number, since it uses as much as digits as its factorization.

112212021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736878602.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112212021001 its reverse (100120212211), we get a palindrome (212332233212).

The spelling of 112212021001 in words is "one hundred twelve billion, two hundred twelve million, twenty-one thousand, one".