2231220022 has 4 divisors (see below), whose sum is σ = 3346830036. Its totient is φ = 1115610010.

The previous prime is 2231219999. The next prime is 2231220037. The reversal of 2231220022 is 2200221322.

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

It is a super-3 number, since 3×2231220022³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231219978 and 2231220005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557805004 + ... + 557805007.

It is an arithmetic number, because the mean of its divisors is an integer number (836707509).

Almost surely, 2^2231220022 is an apocalyptic number.

2231220022 is a deficient number, since it is larger than the sum of its proper divisors (1115610014).

2231220022 is a wasteful number, since it uses less digits than its factorization.

2231220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115610013.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2231220022 is about 47235.7917473604. The cubic root of 2231220022 is about 1306.7147683626.

Adding to 2231220022 its reverse (2200221322), we get a palindrome (4431441344).

The spelling of 2231220022 in words is "two billion, two hundred thirty-one million, two hundred twenty thousand, twenty-two".