21112012002212 has 12 divisors (see below), whose sum is σ = 36950426215920. Its totient is φ = 10554747369096.

The previous prime is 21112012002203. The next prime is 21112012002217. The reversal of 21112012002212 is 21220021021112.

It is not an unprimeable number, because it can be changed into a prime (21112012002217) 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, 314620262 + ... + 314687357.

It is an arithmetic number, because the mean of its divisors is an integer number (3079202184660).

Almost surely, 2^{21112012002212} is an apocalyptic number.

It is an amenable number.

21112012002212 is a deficient number, since it is larger than the sum of its proper divisors (15838414213708).

21112012002212 is a wasteful number, since it uses less digits than its factorization.

21112012002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629316010 (or 629316008 counting only the distinct ones).

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

Adding to 21112012002212 its reverse (21220021021112), we get a palindrome (42332033023324).

The spelling of 21112012002212 in words is "twenty-one trillion, one hundred twelve billion, twelve million, two thousand, two hundred twelve".