100001123212 has 12 divisors (see below), whose sum is σ = 175016141776. Its totient is φ = 49996511280.

The previous prime is 100001123203. The next prime is 100001123239. The reversal of 100001123212 is 212321100001.

It is a junction number, because it is equal to n+sod(n) for n = 100001123192 and 100001123201.

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, 956688 + ... + 1056055.

Almost surely, 2^100001123212 is an apocalyptic number.

It is an amenable number.

100001123212 is a deficient number, since it is larger than the sum of its proper divisors (75015018564).

100001123212 is a wasteful number, since it uses less digits than its factorization.

100001123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025168 (or 2025166 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100001123212 its reverse (212321100001), we get a palindrome (312322223213).

The spelling of 100001123212 in words is "one hundred billion, one million, one hundred twenty-three thousand, two hundred twelve".