100001220122 has 8 divisors (see below), whose sum is σ = 152832053556. Its totient is φ = 49057202272.

The previous prime is 100001220107. The next prime is 100001220131. The reversal of 100001220122 is 221022100001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 94010305321 + 5990914801 = 306611^2 + 77401^2 .

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

It is a super-3 number, since 3×100001220122³ (a number of 34 digits) contains 333 as substring.

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, 471703763 + ... + 471703974.

Almost surely, 2^100001220122 is an apocalyptic number.

100001220122 is a deficient number, since it is larger than the sum of its proper divisors (52830833434).

100001220122 is an equidigital number, since it uses as much as digits as its factorization.

100001220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943407792.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100001220122 its reverse (221022100001), we get a palindrome (321023320123).

The spelling of 100001220122 in words is "one hundred billion, one million, two hundred twenty thousand, one hundred twenty-two".