2222131340 has 48 divisors (see below), whose sum is σ = 5482300320. Its totient is φ = 745889280.

The previous prime is 2222131333. The next prime is 2222131343. The reversal of 2222131340 is 431312222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2222131343) 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 15 ways as a sum of consecutive naturals, for example, 385625 + ... + 391344.

It is an arithmetic number, because the mean of its divisors is an integer number (114214590).

Almost surely, 2^2222131340 is an apocalyptic number.

2222131340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222131340 is an abundant number, since it is smaller than the sum of its proper divisors (3260168980).

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

2222131340 is a wasteful number, since it uses less digits than its factorization.

2222131340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777002 (or 777000 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2222131340 is about 47139.4881177129. The cubic root of 2222131340 is about 1304.9380905536.

Adding to 2222131340 its reverse (431312222), we get a palindrome (2653443562).

The spelling of 2222131340 in words is "two billion, two hundred twenty-two million, one hundred thirty-one thousand, three hundred forty".