1001120111222 has 96 divisors (see below), whose sum is σ = 1939015895040. Its totient is φ = 383233032000.

The previous prime is 1001120111207. The next prime is 1001120111231. The reversal of 1001120111222 is 2221110211001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1001120111197 and 1001120111206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63843179 + ... + 63858857.

It is an arithmetic number, because the mean of its divisors is an integer number (20198082240).

Almost surely, 2^{1001120111222} is an apocalyptic number.

1001120111222 is a deficient number, since it is larger than the sum of its proper divisors (937895783818).

1001120111222 is a wasteful number, since it uses less digits than its factorization.

1001120111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16738 (or 16731 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1001120111222 its reverse (2221110211001), we get a palindrome (3222230322223).

The spelling of 1001120111222 in words is "one trillion, one billion, one hundred twenty million, one hundred eleven thousand, two hundred twenty-two".