2121200110212 has 24 divisors (see below), whose sum is σ = 4960156930176. Its totient is φ = 705539559648.

The previous prime is 2121200110193. The next prime is 2121200110213. The reversal of 2121200110212 is 2120110021212.

It is a junction number, because it is equal to n+sod(n) for n = 2121200110191 and 2121200110200.

It is not an unprimeable number, because it can be changed into a prime (2121200110213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190887183 + ... + 190898294.

It is an arithmetic number, because the mean of its divisors is an integer number (206673205424).

Almost surely, 2^{2121200110212} is an apocalyptic number.

It is an amenable number.

2121200110212 is an abundant number, since it is smaller than the sum of its proper divisors (2838956819964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121200110212 is a wasteful number, since it uses less digits than its factorization.

2121200110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381785947 (or 381785945 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2121200110212 its reverse (2120110021212), we get a palindrome (4241310131424).

The spelling of 2121200110212 in words is "two trillion, one hundred twenty-one billion, two hundred million, one hundred ten thousand, two hundred twelve".