112211002021 has 8 divisors (see below), whose sum is σ = 113286149784. Its totient is φ = 111137295360.

The previous prime is 112211001997. The next prime is 112211002027. The reversal of 112211002021 is 120200112211.

It can be written as a sum of positive squares in 4 ways, for example, as 1008761121 + 111202240900 = 31761^2 + 333470^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112211002021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112211001992 and 112211002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112211002027) 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, 203476 + ... + 515581.

It is an arithmetic number, because the mean of its divisors is an integer number (14160768723).

Almost surely, 2^112211002021 is an apocalyptic number.

It is an amenable number.

112211002021 is a deficient number, since it is larger than the sum of its proper divisors (1075147763).

112211002021 is a wasteful number, since it uses less digits than its factorization.

112211002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720551.

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

Adding to 112211002021 its reverse (120200112211), we get a palindrome (232411114232).

The spelling of 112211002021 in words is "one hundred twelve billion, two hundred eleven million, two thousand, twenty-one".