2212211021 has 8 divisors (see below), whose sum is σ = 2338906080. Its totient is φ = 2086542288.

The previous prime is 2212210999. The next prime is 2212211063. The reversal of 2212211021 is 1201122122.

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-2212211021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2212210987 and 2212211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212211081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252146 + ... + 260771.

It is an arithmetic number, because the mean of its divisors is an integer number (292363260).

Almost surely, 2^2212211021 is an apocalyptic number.

It is an amenable number.

2212211021 is a deficient number, since it is larger than the sum of its proper divisors (126695059).

2212211021 is a wasteful number, since it uses less digits than its factorization.

2212211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513163.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2212211021 is about 47034.1473931441. The cubic root of 2212211021 is about 1302.9933038845.

Adding to 2212211021 its reverse (1201122122), we get a palindrome (3413333143).

The spelling of 2212211021 in words is "two billion, two hundred twelve million, two hundred eleven thousand, twenty-one".