2214120221 has 4 divisors (see below), whose sum is σ = 2214411072. Its totient is φ = 2213829372.

The previous prime is 2214120203. The next prime is 2214120229. The reversal of 2214120221 is 1220214122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1220214122 = 2 ⋅610107061.

It is a cyclic number.

It is not a de Polignac number, because 2214120221 - 2¹⁰ = 2214119197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2214120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2214120229) 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 3 ways as a sum of consecutive naturals, for example, 133691 + ... + 149336.

It is an arithmetic number, because the mean of its divisors is an integer number (553602768).

Almost surely, 2^2214120221 is an apocalyptic number.

It is an amenable number.

2214120221 is a deficient number, since it is larger than the sum of its proper divisors (290851).

2214120221 is an equidigital number, since it uses as much as digits as its factorization.

2214120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290850.

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

The square root of 2214120221 is about 47054.4389085663. The cubic root of 2214120221 is about 1303.3680359951.

Adding to 2214120221 its reverse (1220214122), we get a palindrome (3434334343).

The spelling of 2214120221 in words is "two billion, two hundred fourteen million, one hundred twenty thousand, two hundred twenty-one".