1001222012222 has 32 divisors (see below), whose sum is σ = 1526364103680. Its totient is φ = 492466534560.

The previous prime is 1001222012137. The next prime is 1001222012237. The reversal of 1001222012222 is 2222102221001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001222012222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142641029 + ... + 142648047.

It is an arithmetic number, because the mean of its divisors is an integer number (47698878240).

Almost surely, 2^{1001222012222} is an apocalyptic number.

1001222012222 is a deficient number, since it is larger than the sum of its proper divisors (525142091458).

1001222012222 is a wasteful number, since it uses less digits than its factorization.

1001222012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1001222012222 its reverse (2222102221001), we get a palindrome (3223324233223).

The spelling of 1001222012222 in words is "one trillion, one billion, two hundred twenty-two million, twelve thousand, two hundred twenty-two".