1121222120012 has 48 divisors (see below), whose sum is σ = 2019171702240. Its totient is φ = 544578163200.

The previous prime is 1121222119957. The next prime is 1121222120063. The reversal of 1121222120012 is 2100212221211.

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, 8096312 + ... + 8233632.

It is an arithmetic number, because the mean of its divisors is an integer number (42066077130).

Almost surely, 2^{1121222120012} is an apocalyptic number.

It is an amenable number.

1121222120012 is a deficient number, since it is larger than the sum of its proper divisors (897949582228).

1121222120012 is a wasteful number, since it uses less digits than its factorization.

1121222120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137802 (or 137800 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1121222120012 its reverse (2100212221211), we get a palindrome (3221434341223).

The spelling of 1121222120012 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, twelve".