1341222221 has 8 divisors (see below), whose sum is σ = 1373032704. Its totient is φ = 1309548240.

The previous prime is 1341222203. The next prime is 1341222229. The reversal of 1341222221 is 1222221431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1341222221 is a prime.

It is a super-2 number, since 2×1341222221² = 3597754092208345682, 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 = 1341222193 and 1341222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341222229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14105 + ... + 53678.

It is an arithmetic number, because the mean of its divisors is an integer number (171629088).

Almost surely, 2^1341222221 is an apocalyptic number.

It is an amenable number.

1341222221 is a deficient number, since it is larger than the sum of its proper divisors (31810483).

1341222221 is an equidigital number, since it uses as much as digits as its factorization.

1341222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68251.

The product of its digits is 384, while the sum is 20.

The square root of 1341222221 is about 36622.7008971212. The cubic root of 1341222221 is about 1102.8088602870.

Adding to 1341222221 its reverse (1222221431), we get a palindrome (2563443652).

The spelling of 1341222221 in words is "one billion, three hundred forty-one million, two hundred twenty-two thousand, two hundred twenty-one".