1342221231 has 8 divisors (see below), whose sum is σ = 1927292080. Its totient is φ = 825982272.

The previous prime is 1342221227. The next prime is 1342221269. The reversal of 1342221231 is 1321222431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1342221231 - 2² = 1342221227 is a prime.

It is a super-2 number, since 2×1342221231² = 3603115665894310722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1342221198 and 1342221207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17207926 + ... + 17208003.

It is an arithmetic number, because the mean of its divisors is an integer number (240911510).

Almost surely, 2^1342221231 is an apocalyptic number.

1342221231 is a deficient number, since it is larger than the sum of its proper divisors (585070849).

1342221231 is a wasteful number, since it uses less digits than its factorization.

1342221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34415945.

The product of its digits is 576, while the sum is 21.

The square root of 1342221231 is about 36636.3375762371. The cubic root of 1342221231 is about 1103.0826015650.

Adding to 1342221231 its reverse (1321222431), we get a palindrome (2663443662).

The spelling of 1342221231 in words is "one billion, three hundred forty-two million, two hundred twenty-one thousand, two hundred thirty-one".