1121122220212 has 12 divisors (see below), whose sum is σ = 1962403523136. Its totient is φ = 560435499320.

The previous prime is 1121122220203. The next prime is 1121122220291. The reversal of 1121122220212 is 2120222211211.

It is a self number, because there is not a number n which added to its sum of digits gives 1121122220212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31382614 + ... + 31418317.

It is an arithmetic number, because the mean of its divisors is an integer number (163533626928).

Almost surely, 2^{1121122220212} is an apocalyptic number.

It is an amenable number.

1121122220212 is a deficient number, since it is larger than the sum of its proper divisors (841281302924).

1121122220212 is a wasteful number, since it uses less digits than its factorization.

1121122220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62805398 (or 62805396 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1121122220212 its reverse (2120222211211), we get a palindrome (3241344431423).

Subtracting 1121122220212 from its reverse (2120222211211), we obtain a palindrome (999099990999).

The spelling of 1121122220212 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty thousand, two hundred twelve".