221020022002210 has 8 divisors (see below), whose sum is σ = 397836039603996. Its totient is φ = 88408008800880.

The previous prime is 221020022002201. The next prime is 221020022002249. The reversal of 221020022002210 is 12200220020122.

It can be written as a sum of positive squares in 2 ways, for example, as 207831118489801 + 13188903512409 = 14416349^2 + 3631653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11051001100101 + ... + 11051001100120.

Almost surely, 2^{221020022002210} is an apocalyptic number.

221020022002210 is a deficient number, since it is larger than the sum of its proper divisors (176816017601786).

221020022002210 is a wasteful number, since it uses less digits than its factorization.

221020022002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22102002200228.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221020022002210 its reverse (12200220020122), we get a palindrome (233220242022332).

The spelling of 221020022002210 in words is "two hundred twenty-one trillion, twenty billion, twenty-two million, two thousand, two hundred ten".