220021202210 has 16 divisors (see below), whose sum is σ = 396388971000. Its totient is φ = 87930523776.

The previous prime is 220021202209. The next prime is 220021202239. The reversal of 220021202210 is 12202120022.

It can be written as a sum of positive squares in 4 ways, for example, as 180562955329 + 39458246881 = 424927^2 + 198641^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 9732785 + ... + 9755364.

Almost surely, 2^220021202210 is an apocalyptic number.

220021202210 is a deficient number, since it is larger than the sum of its proper divisors (176367768790).

220021202210 is a wasteful number, since it uses less digits than its factorization.

220021202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19489285.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220021202210 its reverse (12202120022), we get a palindrome (232223322232).

The spelling of 220021202210 in words is "two hundred twenty billion, twenty-one million, two hundred two thousand, two hundred ten".