221202220222010 has 8 divisors (see below), whose sum is σ = 398163996399636. Its totient is φ = 88480888088800.

The previous prime is 221202220222007. The next prime is 221202220222063. The reversal of 221202220222010 is 10222022202122.

It can be written as a sum of positive squares in 2 ways, for example, as 202671924491521 + 18530295730489 = 14236289^2 + 4304683^2 .

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

It is a super-2 number, since 2×221202220222010² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11060111011091 + ... + 11060111011110.

Almost surely, 2^{221202220222010} is an apocalyptic number.

221202220222010 is a deficient number, since it is larger than the sum of its proper divisors (176961776177626).

221202220222010 is a wasteful number, since it uses less digits than its factorization.

221202220222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22120222022208.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 221202220222010 its reverse (10222022202122), we get a palindrome (231424242424132).

The spelling of 221202220222010 in words is "two hundred twenty-one trillion, two hundred two billion, two hundred twenty million, two hundred twenty-two thousand, ten".