1201211202112 has 56 divisors (see below), whose sum is σ = 2429143540992. Its totient is φ = 589148352000.

The previous prime is 1201211202101. The next prime is 1201211202179. The reversal of 1201211202112 is 2112021121021.

It is a super-2 number, since 2×1201211202112² (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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17097937 + ... + 17168047.

It is an arithmetic number, because the mean of its divisors is an integer number (43377563232).

Almost surely, 2^{1201211202112} 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 1201211202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1214571770496).

1201211202112 is an abundant number, since it is smaller than the sum of its proper divisors (1227932338880).

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

1201211202112 is an equidigital number, since it uses as much as digits as its factorization.

1201211202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75227 (or 75217 counting only the distinct ones).

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

Adding to 1201211202112 its reverse (2112021121021), we get a palindrome (3313232323133).

The spelling of 1201211202112 in words is "one trillion, two hundred one billion, two hundred eleven million, two hundred two thousand, one hundred twelve".