1342221269 has 2 divisors, whose sum is σ = 1342221270. Its totient is φ = 1342221268.

The previous prime is 1342221227. The next prime is 1342221271. The reversal of 1342221269 is 9621222431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034394244 + 307827025 = 32162^2 + 17545^2 .

It is an emirp because it is prime and its reverse (9621222431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1342221269 - 2²⁴ = 1325444053 is a prime.

It is a super-2 number, since 2×1342221269² = 3603115869911940722, which contains 22 as substring.

Together with 1342221271, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342221169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671110634 + 671110635.

It is an arithmetic number, because the mean of its divisors is an integer number (671110635).

Almost surely, 2^1342221269 is an apocalyptic number.

It is an amenable number.

1342221269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342221269 is an equidigital number, since it uses as much as digits as its factorization.

1342221269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 1342221269 is about 36636.3380948479. The cubic root of 1342221269 is about 1103.0826119749.

The spelling of 1342221269 in words is "one billion, three hundred forty-two million, two hundred twenty-one thousand, two hundred sixty-nine".