12100211212 has 12 divisors (see below), whose sum is σ = 21176280216. Its totient is φ = 6049845440.

The previous prime is 12100211143. The next prime is 12100211219. The reversal of 12100211212 is 21211200121.

It is a super-2 number, since 2×12100211212² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12100211192 and 12100211201.

It is not an unprimeable number, because it can be changed into a prime (12100211219) 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, 71412 + ... + 171172.

It is an arithmetic number, because the mean of its divisors is an integer number (1764690018).

Almost surely, 2^12100211212 is an apocalyptic number.

It is an amenable number.

12100211212 is a deficient number, since it is larger than the sum of its proper divisors (9076069004).

12100211212 is a wasteful number, since it uses less digits than its factorization.

12100211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130088 (or 130086 counting only the distinct ones).

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

Adding to 12100211212 its reverse (21211200121), we get a palindrome (33311411333).

The spelling of 12100211212 in words is "twelve billion, one hundred million, two hundred eleven thousand, two hundred twelve".