2221021214 has 8 divisors (see below), whose sum is σ = 3331771488. Its totient is φ = 1110430720.

The previous prime is 2221021189. The next prime is 2221021249. The reversal of 2221021214 is 4121201222.

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

It is a junction number, because it is equal to n+sod(n) for n = 2221021192 and 2221021201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4859 + ... + 66825.

It is an arithmetic number, because the mean of its divisors is an integer number (416471436).

Almost surely, 2^2221021214 is an apocalyptic number.

2221021214 is a deficient number, since it is larger than the sum of its proper divisors (1110750274).

2221021214 is a wasteful number, since it uses less digits than its factorization.

2221021214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79890.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2221021214 is about 47127.7117416070. The cubic root of 2221021214 is about 1304.7207486140.

Adding to 2221021214 its reverse (4121201222), we get a palindrome (6342222436).

The spelling of 2221021214 in words is "two billion, two hundred twenty-one million, twenty-one thousand, two hundred fourteen".