100001210212 has 12 divisors (see below), whose sum is σ = 175004420220. Its totient is φ = 49999947296.

The previous prime is 100001210203. The next prime is 100001210219. The reversal of 100001210212 is 212012100001.

It can be written as a sum of positive squares in 2 ways, for example, as 2497400676 + 97503809536 = 49974^2 + 312256^2 .

It is a super-2 number, since 2×100001210212² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100001210219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372114 + ... + 581782.

It is an arithmetic number, because the mean of its divisors is an integer number (14583701685).

Almost surely, 2^100001210212 is an apocalyptic number.

It is an amenable number.

100001210212 is a deficient number, since it is larger than the sum of its proper divisors (75003210008).

100001210212 is a wasteful number, since it uses less digits than its factorization.

100001210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328910 (or 328908 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100001210212 its reverse (212012100001), we get a palindrome (312013310213).

The spelling of 100001210212 in words is "one hundred billion, one million, two hundred ten thousand, two hundred twelve".