2120221223 has 4 divisors (see below), whose sum is σ = 2188615488. Its totient is φ = 2051826960.

The previous prime is 2120221199. The next prime is 2120221261. The reversal of 2120221223 is 3221220212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120221223 is a prime.

It is a super-3 number, since 3×2120221223³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120221273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34197086 + ... + 34197147.

It is an arithmetic number, because the mean of its divisors is an integer number (547153872).

Almost surely, 2^2120221223 is an apocalyptic number.

2120221223 is a deficient number, since it is larger than the sum of its proper divisors (68394265).

2120221223 is an equidigital number, since it uses as much as digits as its factorization.

2120221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68394264.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2120221223 is about 46045.8599984841. The cubic root of 2120221223 is about 1284.6763401314.

Adding to 2120221223 its reverse (3221220212), we get a palindrome (5341441435).

The spelling of 2120221223 in words is "two billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-three".