1100120211212 has 72 divisors (see below), whose sum is σ = 2227983473520. Its totient is φ = 473636592000.

The previous prime is 1100120211181. The next prime is 1100120211257. The reversal of 1100120211212 is 2121120210011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58817462 + ... + 58836162.

It is an arithmetic number, because the mean of its divisors is an integer number (30944214910).

Almost surely, 2^{1100120211212} is an apocalyptic number.

It is an amenable number.

1100120211212 is an abundant number, since it is smaller than the sum of its proper divisors (1127863262308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100120211212 is a wasteful number, since it uses less digits than its factorization.

1100120211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25143 (or 25130 counting only the distinct ones).

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

Adding to 1100120211212 its reverse (2121120210011), we get a palindrome (3221240421223).

The spelling of 1100120211212 in words is "one trillion, one hundred billion, one hundred twenty million, two hundred eleven thousand, two hundred twelve".