220542002 has 6 divisors (see below), whose sum is σ = 330844509. Its totient is φ = 110260500.

The previous prime is 220541999. The next prime is 220542011. The reversal of 220542002 is 200245022.

It can be written as a sum of positive squares in 2 ways, for example, as 210801361 + 9740641 = 14519^2 + 3121^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10501.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15752 + ... + 26252.

Almost surely, 2^220542002 is an apocalyptic number.

220542002 is a deficient number, since it is larger than the sum of its proper divisors (110302507).

220542002 is an frugal number, since it uses more digits than its factorization.

220542002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21004 (or 10503 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 220542002 is about 14850.6566184799. The cubic root of 220542002 is about 604.1764191614.

Adding to 220542002 its reverse (200245022), we get a palindrome (420787024).

The spelling of 220542002 in words is "two hundred twenty million, five hundred forty-two thousand, two".