2221123001222 has 24 divisors (see below), whose sum is σ = 3461627521872. Its totient is φ = 1068818223200.

The previous prime is 2221123001203. The next prime is 2221123001239. The reversal of 2221123001222 is 2221003211222.

It is a super-2 number, since 2×2221123001222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2221123001194 and 2221123001203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1599929 + ... + 2646132.

It is an arithmetic number, because the mean of its divisors is an integer number (144234480078).

Almost surely, 2^{2221123001222} is an apocalyptic number.

2221123001222 is a deficient number, since it is larger than the sum of its proper divisors (1240504520650).

2221123001222 is a wasteful number, since it uses less digits than its factorization.

2221123001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246432 (or 4246403 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2221123001222 its reverse (2221003211222), we get a palindrome (4442126212444).

The spelling of 2221123001222 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-three million, one thousand, two hundred twenty-two".