2211121302 has 48 divisors (see below), whose sum is σ = 4813324560. Its totient is φ = 676830336.

The previous prime is 2211121301. The next prime is 2211121313. The reversal of 2211121302 is 2031211122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211121301) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 194224 + ... + 205292.

It is an arithmetic number, because the mean of its divisors is an integer number (100277595).

Almost surely, 2^2211121302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211121302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2406662280).

2211121302 is an abundant number, since it is smaller than the sum of its proper divisors (2602203258).

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

2211121302 is a wasteful number, since it uses less digits than its factorization.

2211121302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11297 (or 11284 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2211121302 is about 47022.5616273720. The cubic root of 2211121302 is about 1302.7793204152.

Adding to 2211121302 its reverse (2031211122), we get a palindrome (4242332424).

The spelling of 2211121302 in words is "two billion, two hundred eleven million, one hundred twenty-one thousand, three hundred two".