1220880799 has 2 divisors, whose sum is σ = 1220880800. Its totient is φ = 1220880798.

The previous prime is 1220880761. The next prime is 1220880841. The reversal of 1220880799 is 9970880221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220880799 - 2²³ = 1212492191 is a prime.

It is a super-4 number, since 4×1220880799⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220881799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610440399 + 610440400.

It is an arithmetic number, because the mean of its divisors is an integer number (610440400).

Almost surely, 2^1220880799 is an apocalyptic number.

1220880799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220880799 is an equidigital number, since it uses as much as digits as its factorization.

1220880799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 1220880799 is about 34941.1047192272. The cubic root of 1220880799 is about 1068.7868158083.

The spelling of 1220880799 in words is "one billion, two hundred twenty million, eight hundred eighty thousand, seven hundred ninety-nine".