2221221299 has 8 divisors (see below), whose sum is σ = 2424135360. Its totient is φ = 2018471400.

The previous prime is 2221221283. The next prime is 2221221311. The reversal of 2221221299 is 9921221222.

It is a happy number.

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

It is not a de Polignac number, because 2221221299 - 2⁴ = 2221221283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221221209) 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, 11837 + ... + 67694.

It is an arithmetic number, because the mean of its divisors is an integer number (303016920).

Almost surely, 2^2221221299 is an apocalyptic number.

2221221299 is a deficient number, since it is larger than the sum of its proper divisors (202914061).

2221221299 is a wasteful number, since it uses less digits than its factorization.

2221221299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82081.

The product of its digits is 5184, while the sum is 32.

The square root of 2221221299 is about 47129.8344894187. The cubic root of 2221221299 is about 1304.7599268698.

The spelling of 2221221299 in words is "two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred ninety-nine".