2221221011222 has 8 divisors (see below), whose sum is σ = 3353896626672. Its totient is φ = 1103255469000.

The previous prime is 2221221011201. The next prime is 2221221011227. The reversal of 2221221011222 is 2221101221222.

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

It is a junction number, because it is equal to n+sod(n) for n = 2221221011194 and 2221221011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221221011227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3677517929 + ... + 3677518532.

It is an arithmetic number, because the mean of its divisors is an integer number (419237078334).

Almost surely, 2^{2221221011222} is an apocalyptic number.

2221221011222 is a deficient number, since it is larger than the sum of its proper divisors (1132675615450).

2221221011222 is a wasteful number, since it uses less digits than its factorization.

2221221011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355036614.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2221221011222 its reverse (2221101221222), we get a palindrome (4442322232444).

The spelling of 2221221011222 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-one million, eleven thousand, two hundred twenty-two".