2212111011012 has 96 divisors (see below), whose sum is σ = 6013102217472. Its totient is φ = 619813748736.

The previous prime is 2212111011001. The next prime is 2212111011017. The reversal of 2212111011012 is 2101101112122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2212111010982 and 2212111011000.

It is not an unprimeable number, because it can be changed into a prime (2212111011017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9397668 + ... + 9630180.

It is an arithmetic number, because the mean of its divisors is an integer number (62636481432).

Almost surely, 2^{2212111011012} 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 2212111011012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3006551108736).

2212111011012 is an abundant number, since it is smaller than the sum of its proper divisors (3800991206460).

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

2212111011012 is a wasteful number, since it uses less digits than its factorization.

2212111011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234717 (or 234715 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2212111011012 its reverse (2101101112122), we get a palindrome (4313212123134).

The spelling of 2212111011012 in words is "two trillion, two hundred twelve billion, one hundred eleven million, eleven thousand, twelve".