1220250814 has 4 divisors (see below), whose sum is σ = 1830376224. Its totient is φ = 610125406.

The previous prime is 1220250751. The next prime is 1220250821. The reversal of 1220250814 is 4180520221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305062702 + ... + 305062705.

It is an arithmetic number, because the mean of its divisors is an integer number (457594056).

Almost surely, 2^1220250814 is an apocalyptic number.

1220250814 is a deficient number, since it is larger than the sum of its proper divisors (610125410).

1220250814 is an equidigital number, since it uses as much as digits as its factorization.

1220250814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610125409.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 1220250814 is about 34932.0886005976. The cubic root of 1220250814 is about 1068.6029497806.

The spelling of 1220250814 in words is "one billion, two hundred twenty million, two hundred fifty thousand, eight hundred fourteen".