2221001222 has 24 divisors (see below), whose sum is σ = 3695538000. Its totient is φ = 1000272240.

The previous prime is 2221001207. The next prime is 2221001243.

2221001222 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2221001197 and 2221001206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15722 + ... + 68477.

It is an arithmetic number, because the mean of its divisors is an integer number (153980750).

Almost surely, 2^2221001222 is an apocalyptic number.

2221001222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221001222 is a deficient number, since it is larger than the sum of its proper divisors (1474536778).

2221001222 is a wasteful number, since it uses less digits than its factorization.

2221001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84332 (or 84321 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2221001222 is about 47127.4996366241. The cubic root of 2221001222 is about 1304.7168338899.

It can be divided in two parts, 222100 and 1222, that added together give a palindrome (223322).

The spelling of 2221001222 in words is "two billion, two hundred twenty-one million, one thousand, two hundred twenty-two".