2221342340 has 24 divisors (see below), whose sum is σ = 5331221952. Its totient is φ = 761603040.

The previous prime is 2221342337. The next prime is 2221342351. The reversal of 2221342340 is 432431222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7933226 + ... + 7933505.

It is an arithmetic number, because the mean of its divisors is an integer number (222134248).

Almost surely, 2^2221342340 is an apocalyptic number.

2221342340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221342340 is an abundant number, since it is smaller than the sum of its proper divisors (3109879612).

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

2221342340 is a wasteful number, since it uses less digits than its factorization.

2221342340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15866747 (or 15866745 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2221342340 is about 47131.1185948307. The cubic root of 2221342340 is about 1304.7836265312.

Adding to 2221342340 its reverse (432431222), we get a palindrome (2653773562).

The spelling of 2221342340 in words is "two billion, two hundred twenty-one million, three hundred forty-two thousand, three hundred forty".