1220412341 has 4 divisors (see below), whose sum is σ = 1220951532. Its totient is φ = 1219873152.

The previous prime is 1220412331. The next prime is 1220412373. The reversal of 1220412341 is 1432140221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1432140221 = 3001 ⋅477221.

It can be written as a sum of positive squares in 2 ways, for example, as 1133736241 + 86676100 = 33671^2 + 9310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220412341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220412311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266186 + ... + 270731.

It is an arithmetic number, because the mean of its divisors is an integer number (305237883).

Almost surely, 2^1220412341 is an apocalyptic number.

It is an amenable number.

1220412341 is a deficient number, since it is larger than the sum of its proper divisors (539191).

1220412341 is an equidigital number, since it uses as much as digits as its factorization.

1220412341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539190.

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

The square root of 1220412341 is about 34934.4005387240. The cubic root of 1220412341 is about 1068.6500987249.

Adding to 1220412341 its reverse (1432140221), we get a palindrome (2652552562).

The spelling of 1220412341 in words is "one billion, two hundred twenty million, four hundred twelve thousand, three hundred forty-one".