1201220211112 has 64 divisors (see below), whose sum is σ = 2321048620800. Its totient is φ = 582621361920.

The previous prime is 1201220211083. The next prime is 1201220211127. The reversal of 1201220211112 is 2111120221021.

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, 9431278 + ... + 9557794.

It is an arithmetic number, because the mean of its divisors is an integer number (36266384700).

Almost surely, 2^{1201220211112} is an apocalyptic number.

It is an amenable number.

1201220211112 is a deficient number, since it is larger than the sum of its proper divisors (1119828409688).

1201220211112 is a wasteful number, since it uses less digits than its factorization.

1201220211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126866 (or 126862 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1201220211112 its reverse (2111120221021), we get a palindrome (3312340432133).

Subtracting 1201220211112 from its reverse (2111120221021), we obtain a palindrome (909900009909).

The spelling of 1201220211112 in words is "one trillion, two hundred one billion, two hundred twenty million, two hundred eleven thousand, one hundred twelve".