2212321340 has 12 divisors (see below), whose sum is σ = 4645874856. Its totient is φ = 884928528.

The previous prime is 2212321339. The next prime is 2212321357. The reversal of 2212321340 is 431232122.

2212321340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2212321340² = 9788731422838791200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 110616067 = 2212321340 / (2 + 2 + 1 + 2 + 3 + 2 + 1 + 3 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55308014 + ... + 55308053.

It is an arithmetic number, because the mean of its divisors is an integer number (387156238).

Almost surely, 2^2212321340 is an apocalyptic number.

2212321340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212321340 is an abundant number, since it is smaller than the sum of its proper divisors (2433553516).

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

2212321340 is a wasteful number, since it uses less digits than its factorization.

2212321340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110616076 (or 110616074 counting only the distinct ones).

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

The square root of 2212321340 is about 47035.3201328534. The cubic root of 2212321340 is about 1303.0149628383.

Adding to 2212321340 its reverse (431232122), we get a palindrome (2643553462).

The spelling of 2212321340 in words is "two billion, two hundred twelve million, three hundred twenty-one thousand, three hundred forty".