112211212001021 has 4 divisors (see below), whose sum is σ = 128241385144032. Its totient is φ = 96181038858012.

The previous prime is 112211212001003. The next prime is 112211212001029. The reversal of 112211212001021 is 120100212112211.

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 a de Polignac number, because none of the positive numbers 2^k-112211212001021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112211212001029) 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, 8015086571495 + ... + 8015086571508.

It is an arithmetic number, because the mean of its divisors is an integer number (32060346286008).

Almost surely, 2^{112211212001021} is an apocalyptic number.

It is an amenable number.

112211212001021 is a deficient number, since it is larger than the sum of its proper divisors (16030173143011).

112211212001021 is an equidigital number, since it uses as much as digits as its factorization.

112211212001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16030173143010.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112211212001021 its reverse (120100212112211), we get a palindrome (232311424113232).

The spelling of 112211212001021 in words is "one hundred twelve trillion, two hundred eleven billion, two hundred twelve million, one thousand, twenty-one".