2212120101212 has 144 divisors (see below), whose sum is σ = 5022610467840. Its totient is φ = 844729579008.

The previous prime is 2212120101179. The next prime is 2212120101241. The reversal of 2212120101212 is 2121010212122.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96406613 + ... + 96429555.

It is an arithmetic number, because the mean of its divisors is an integer number (34879239360).

Almost surely, 2^{2212120101212} 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 2212120101212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2511305233920).

2212120101212 is an abundant number, since it is smaller than the sum of its proper divisors (2810490366628).

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

2212120101212 is a wasteful number, since it uses less digits than its factorization.

2212120101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24520 (or 24511 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2212120101212 its reverse (2121010212122), we get a palindrome (4333130313334).

The spelling of 2212120101212 in words is "two trillion, two hundred twelve billion, one hundred twenty million, one hundred one thousand, two hundred twelve".