2221000012222 has 16 divisors (see below), whose sum is σ = 3447154719360. Its totient is φ = 1071965670048.

The previous prime is 2221000012219. The next prime is 2221000012261. The reversal of 2221000012222 is 2222100001222.

It is a junction number, because it is equal to n+sod(n) for n = 2221000012196 and 2221000012205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4047573 + ... + 4563424.

It is an arithmetic number, because the mean of its divisors is an integer number (215447169960).

Almost surely, 2^{2221000012222} is an apocalyptic number.

2221000012222 is a deficient number, since it is larger than the sum of its proper divisors (1226154707138).

2221000012222 is a wasteful number, since it uses less digits than its factorization.

2221000012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615475.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2221000012222 its reverse (2222100001222), we get a palindrome (4443100013444).

It can be divided in two parts, 222100001222 and 2, that multiplied together give a palindrome (444200002444).

The spelling of 2221000012222 in words is "two trillion, two hundred twenty-one billion, twelve thousand, two hundred twenty-two".