2211211101012 has 96 divisors (see below), whose sum is σ = 5515568287488. Its totient is φ = 687066998784.

The previous prime is 2211211100981. The next prime is 2211211101017. The reversal of 2211211101012 is 2101011121122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2211211100982 and 2211211101000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211211101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9319678 + ... + 9553994.

It is an arithmetic number, because the mean of its divisors is an integer number (57453836328).

Almost surely, 2^{2211211101012} 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 2211211101012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2757784143744).

2211211101012 is an abundant number, since it is smaller than the sum of its proper divisors (3304357186476).

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

2211211101012 is a wasteful number, since it uses less digits than its factorization.

2211211101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234785 (or 234783 counting only the distinct ones).

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

Adding to 2211211101012 its reverse (2101011121122), we get a palindrome (4312222222134).

The spelling of 2211211101012 in words is "two trillion, two hundred eleven billion, two hundred eleven million, one hundred one thousand, twelve".