2802221885 has 4 divisors (see below), whose sum is σ = 3362666268. Its totient is φ = 2241777504.

The previous prime is 2802221857. The next prime is 2802221887. The reversal of 2802221885 is 5881222082.

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

It can be written as a sum of positive squares in 2 ways, for example, as 939177316 + 1863044569 = 30646^2 + 43163^2 .

It is a cyclic number.

It is not a de Polignac number, because 2802221885 - 2¹⁴ = 2802205501 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 (2802221887) 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, 280222184 + ... + 280222193.

It is an arithmetic number, because the mean of its divisors is an integer number (840666567).

Almost surely, 2^2802221885 is an apocalyptic number.

It is an amenable number.

2802221885 is a deficient number, since it is larger than the sum of its proper divisors (560444383).

2802221885 is an equidigital number, since it uses as much as digits as its factorization.

2802221885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560444382.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 2802221885 is about 52936.0168977606. The cubic root of 2802221885 is about 1409.8324642080.

The spelling of 2802221885 in words is "two billion, eight hundred two million, two hundred twenty-one thousand, eight hundred eighty-five".