220101222121010 has 8 divisors (see below), whose sum is σ = 396182199817836. Its totient is φ = 88040488848400.

The previous prime is 220101222121003. The next prime is 220101222121021. The reversal of 220101222121010 is 10121222101022.

It can be written as a sum of positive squares in 2 ways, for example, as 220081705192801 + 19516928209 = 14835151^2 + 139703^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 220101222121010.

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, 11005061106041 + ... + 11005061106060.

Almost surely, 2^{220101222121010} is an apocalyptic number.

220101222121010 is a deficient number, since it is larger than the sum of its proper divisors (176080977696826).

220101222121010 is a wasteful number, since it uses less digits than its factorization.

220101222121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22010122212108.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220101222121010 its reverse (10121222101022), we get a palindrome (230222444222032).

The spelling of 220101222121010 in words is "two hundred twenty trillion, one hundred one billion, two hundred twenty-two million, one hundred twenty-one thousand, ten".