121122200100212 has 12 divisors (see below), whose sum is σ = 211970045109060. Its totient is φ = 60559330069056.

The previous prime is 121122200100157. The next prime is 121122200100217. The reversal of 121122200100212 is 212001002221121.

It can be written as a sum of positive squares in 2 ways, for example, as 79271315061136 + 41850885039076 = 8903444^2 + 6469226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122200100217) 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, 442341287 + ... + 442615022.

It is an arithmetic number, because the mean of its divisors is an integer number (17664170425755).

Almost surely, 2^{121122200100212} is an apocalyptic number.

It is an amenable number.

121122200100212 is a deficient number, since it is larger than the sum of its proper divisors (90847845008848).

121122200100212 is a wasteful number, since it uses less digits than its factorization.

121122200100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884990530 (or 884990528 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121122200100212 its reverse (212001002221121), we get a palindrome (333123202321333).

The spelling of 121122200100212 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred million, one hundred thousand, two hundred twelve".