2212001100012 has 96 divisors (see below), whose sum is σ = 5751662837760. Its totient is φ = 655986876480.

The previous prime is 2212001100007. The next prime is 2212001100031. The reversal of 2212001100012 is 2100011002122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1099893 + ... + 2373555.

It is an arithmetic number, because the mean of its divisors is an integer number (59913154560).

Almost surely, 2^{2212001100012} is an apocalyptic number.

2212001100012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212001100012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2875831418880).

2212001100012 is an abundant number, since it is smaller than the sum of its proper divisors (3539661737748).

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

2212001100012 is a wasteful number, since it uses less digits than its factorization.

2212001100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273963 (or 1273961 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2212001100012 its reverse (2100011002122), we get a palindrome (4312012102134).

The spelling of 2212001100012 in words is "two trillion, two hundred twelve billion, one million, one hundred thousand, twelve".