2142226056 has 96 divisors (see below), whose sum is σ = 5681764800. Its totient is φ = 672268800.

The previous prime is 2142225983. The next prime is 2142226057. The reversal of 2142226056 is 6506222412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2142226057) 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 23 ways as a sum of consecutive naturals, for example, 1169061 + ... + 1170891.

It is an arithmetic number, because the mean of its divisors is an integer number (59185050).

Almost surely, 2^2142226056 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 2142226056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2840882400).

2142226056 is an abundant number, since it is smaller than the sum of its proper divisors (3539538744).

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

2142226056 is a wasteful number, since it uses less digits than its factorization.

2142226056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2142226056 is about 46284.1879695431. The cubic root of 2142226056 is about 1289.1054142616.

Adding to 2142226056 its reverse (6506222412), we get a palindrome (8648448468).

The spelling of 2142226056 in words is "two billion, one hundred forty-two million, two hundred twenty-six thousand, fifty-six".