1211102113112 has 16 divisors (see below), whose sum is σ = 2273478627840. Its totient is φ = 604841145696.

The previous prime is 1211102112991. The next prime is 1211102113121. The reversal of 1211102113112 is 2113112011121.

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, 88731608 + ... + 88745255.

It is an arithmetic number, because the mean of its divisors is an integer number (142092414240).

Almost surely, 2^{1211102113112} is an apocalyptic number.

It is an amenable number.

1211102113112 is a deficient number, since it is larger than the sum of its proper divisors (1062376514728).

1211102113112 is a wasteful number, since it uses less digits than its factorization.

1211102113112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177477722 (or 177477718 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 1211102113112 its reverse (2113112011121), we get a palindrome (3324214124233).

The spelling of 1211102113112 in words is "one trillion, two hundred eleven billion, one hundred two million, one hundred thirteen thousand, one hundred twelve".