100111221002 has 8 divisors (see below), whose sum is σ = 161718126276. Its totient is φ = 46205178912.

The previous prime is 100111220959. The next prime is 100111221019. The reversal of 100111221002 is 200122111001.

It can be written as a sum of positive squares in 2 ways, for example, as 96459315241 + 3651905761 = 310579^2 + 60431^2 .

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

It is a super-2 number, since 2×100111221002² (a number of 23 digits) contains 22 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, 1925215763 + ... + 1925215814.

Almost surely, 2^100111221002 is an apocalyptic number.

100111221002 is a deficient number, since it is larger than the sum of its proper divisors (61606905274).

100111221002 is a wasteful number, since it uses less digits than its factorization.

100111221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850431592.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100111221002 its reverse (200122111001), we get a palindrome (300233332003).

The spelling of 100111221002 in words is "one hundred billion, one hundred eleven million, two hundred twenty-one thousand, two".