100201121212 has 12 divisors (see below), whose sum is σ = 175417240320. Its totient is φ = 50081909696.

The previous prime is 100201121179. The next prime is 100201121213. The reversal of 100201121212 is 212121102001.

It is a junction number, because it is equal to n+sod(n) for n = 100201121192 and 100201121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100201121213) 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, 4650637 + ... + 4672132.

It is an arithmetic number, because the mean of its divisors is an integer number (14618103360).

Almost surely, 2^100201121212 is an apocalyptic number.

It is an amenable number.

100201121212 is a deficient number, since it is larger than the sum of its proper divisors (75216119108).

100201121212 is a wasteful number, since it uses less digits than its factorization.

100201121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9325460 (or 9325458 counting only the distinct ones).

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

Adding to 100201121212 its reverse (212121102001), we get a palindrome (312322223213).

The spelling of 100201121212 in words is "one hundred billion, two hundred one million, one hundred twenty-one thousand, two hundred twelve".