2211372 has 72 divisors (see below), whose sum is σ = 6093360. Its totient is φ = 673920.

The previous prime is 2211367. The next prime is 2211373. The reversal of 2211372 is 2731122.

2211372 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2211372² = 9780332244768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2211373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36222 + ... + 36282.

It is an arithmetic number, because the mean of its divisors is an integer number (84630).

2^2211372 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 2211372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3046680).

2211372 is an abundant number, since it is smaller than the sum of its proper divisors (3881988).

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

2211372 is a wasteful number, since it uses less digits than its factorization.

2211372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 138 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 2211372 is about 1487.0682566715. The cubic root of 2211372 is about 130.2828555137.

Adding to 2211372 its reverse (2731122), we get a palindrome (4942494).

The spelling of 2211372 in words is "two million, two hundred eleven thousand, three hundred seventy-two".