1201211112112 has 80 divisors (see below), whose sum is σ = 2621206232064. Its totient is φ = 528314976000.

The previous prime is 1201211112103. The next prime is 1201211112113. The reversal of 1201211112112 is 2112111121021.

It is a super-2 number, since 2×1201211112112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1201211112113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54227023 + ... + 54249169.

Almost surely, 2^{1201211112112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201211112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1310603116032).

1201211112112 is an abundant number, since it is smaller than the sum of its proper divisors (1419995119952).

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

1201211112112 is a wasteful number, since it uses less digits than its factorization.

1201211112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32138 (or 32132 counting only the distinct ones).

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

Adding to 1201211112112 its reverse (2112111121021), we get a palindrome (3313322233133).

The spelling of 1201211112112 in words is "one trillion, two hundred one billion, two hundred eleven million, one hundred twelve thousand, one hundred twelve".