2222022021 has 8 divisors (see below), whose sum is σ = 3064858080. Its totient is φ = 1430266992.

The previous prime is 2222022017. The next prime is 2222022029. The reversal of 2222022021 is 1202202222.

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

It is not a de Polignac number, because 2222022021 - 2² = 2222022017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222022029) 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, 12770155 + ... + 12770328.

It is an arithmetic number, because the mean of its divisors is an integer number (383107260).

Almost surely, 2^2222022021 is an apocalyptic number.

It is an amenable number.

2222022021 is a deficient number, since it is larger than the sum of its proper divisors (842836059).

2222022021 is a wasteful number, since it uses less digits than its factorization.

2222022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25540515.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2222022021 is about 47138.3285766477. The cubic root of 2222022021 is about 1304.9166911484.

Adding to 2222022021 its reverse (1202202222), we get a palindrome (3424224243).

The spelling of 2222022021 in words is "two billion, two hundred twenty-two million, twenty-two thousand, twenty-one".