10001220222122 has 8 divisors (see below), whose sum is σ = 15004238736900. Its totient is φ = 4999807309824.

The previous prime is 10001220222029. The next prime is 10001220222137. The reversal of 10001220222122 is 22122202210001.

It is a happy number.

10001220222122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9737701239841 + 263518982281 = 3120529^2 + 513341^2 .

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

It is a super-3 number, since 3×10001220222122³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10001220222122.

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, 401385047 + ... + 401409962.

Almost surely, 2^{10001220222122} is an apocalyptic number.

10001220222122 is a deficient number, since it is larger than the sum of its proper divisors (5003018514778).

10001220222122 is an equidigital number, since it uses as much as digits as its factorization.

10001220222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802801240.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10001220222122 its reverse (22122202210001), we get a palindrome (32123422432123).

The spelling of 10001220222122 in words is "ten trillion, one billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-two".