100021121122 has 8 divisors (see below), whose sum is σ = 161572580316. Its totient is φ = 46163594352.

The previous prime is 100021121117. The next prime is 100021121183. The reversal of 100021121122 is 221121120001.

It can be written as a sum of positive squares in 2 ways, for example, as 75998911041 + 24022210081 = 275679^2 + 154991^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923483073 + ... + 1923483124.

Almost surely, 2^100021121122 is an apocalyptic number.

100021121122 is a deficient number, since it is larger than the sum of its proper divisors (61551459194).

100021121122 is a wasteful number, since it uses less digits than its factorization.

100021121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846966212.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100021121122 its reverse (221121120001), we get a palindrome (321142241123).

The spelling of 100021121122 in words is "one hundred billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".