100121122011212 has 12 divisors (see below), whose sum is σ = 175468496413896. Its totient is φ = 49987265892960.

The previous prime is 100121122011203. The next prime is 100121122011247. The reversal of 100121122011212 is 212110221121001.

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, 18323775089 + ... + 18323780552.

It is an arithmetic number, because the mean of its divisors is an integer number (14622374701158).

Almost surely, 2^{100121122011212} is an apocalyptic number.

It is an amenable number.

100121122011212 is a deficient number, since it is larger than the sum of its proper divisors (75347374402684).

100121122011212 is a wasteful number, since it uses less digits than its factorization.

100121122011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36647556328 (or 36647556326 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100121122011212 its reverse (212110221121001), we get a palindrome (312231343132213).

The spelling of 100121122011212 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty-two million, eleven thousand, two hundred twelve".