1220202443 has 8 divisors (see below), whose sum is σ = 1249076400. Its totient is φ = 1191351168.

The previous prime is 1220202433. The next prime is 1220202449. The reversal of 1220202443 is 3442020221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220202443 - 2¹⁸ = 1219940299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220202449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158303 + ... + 165831.

It is an arithmetic number, because the mean of its divisors is an integer number (156134550).

Almost surely, 2^1220202443 is an apocalyptic number.

1220202443 is a deficient number, since it is larger than the sum of its proper divisors (28873957).

1220202443 is an equidigital number, since it uses as much as digits as its factorization.

1220202443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11341.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1220202443 is about 34931.3962360510. The cubic root of 1220202443 is about 1068.5888297118.

Adding to 1220202443 its reverse (3442020221), we get a palindrome (4662222664).

The spelling of 1220202443 in words is "one billion, two hundred twenty million, two hundred two thousand, four hundred forty-three".