1220772841 has 8 divisors (see below), whose sum is σ = 1228348800. Its totient is φ = 1213219920.

The previous prime is 1220772829. The next prime is 1220772851. The reversal of 1220772841 is 1482770221.

It is a happy number.

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 1220772841 - 2²³ = 1212384233 is a prime.

It is a super-2 number, since 2×1220772841² = 2980572658646422562, 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 = 1220772797 and 1220772806.

It is not an unprimeable number, because it can be changed into a prime (1220772851) 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, 107296 + ... + 118126.

It is an arithmetic number, because the mean of its divisors is an integer number (153543600).

Almost surely, 2^1220772841 is an apocalyptic number.

It is an amenable number.

1220772841 is a deficient number, since it is larger than the sum of its proper divisors (7575959).

1220772841 is a wasteful number, since it uses less digits than its factorization.

1220772841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11519.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 1220772841 is about 34939.5598283665. The cubic root of 1220772841 is about 1068.7553119169.

The spelling of 1220772841 in words is "one billion, two hundred twenty million, seven hundred seventy-two thousand, eight hundred forty-one".