2222021222 has 4 divisors (see below), whose sum is σ = 3333031836. Its totient is φ = 1111010610.

The previous prime is 2222021213. The next prime is 2222021233. The reversal of 2222021222 is 2221202222.

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

It is a super-2 number, since 2×2222021222² = 9874756622036746568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2222021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555505304 + ... + 555505307.

It is an arithmetic number, because the mean of its divisors is an integer number (833257959).

Almost surely, 2^2222021222 is an apocalyptic number.

2222021222 is a deficient number, since it is larger than the sum of its proper divisors (1111010614).

2222021222 is a wasteful number, since it uses less digits than its factorization.

2222021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111010613.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2222021222 is about 47138.3201015904. The cubic root of 2222021222 is about 1304.9165347400.

Adding to 2222021222 its reverse (2221202222), we get a palindrome (4443223444).

The spelling of 2222021222 in words is "two billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty-two".