12101030212 has 6 divisors (see below), whose sum is σ = 21176802878. Its totient is φ = 6050515104.

The previous prime is 12101030209. The next prime is 12101030243. The reversal of 12101030212 is 21203010121.

It can be written as a sum of positive squares in only one way, i.e., 10211910916 + 1889119296 = 101054^2 + 43464^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12101030192 and 12101030201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1512628773 + ... + 1512628780.

Almost surely, 2^12101030212 is an apocalyptic number.

It is an amenable number.

12101030212 is a deficient number, since it is larger than the sum of its proper divisors (9075772666).

12101030212 is a wasteful number, since it uses less digits than its factorization.

12101030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025257557 (or 3025257555 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12101030212 its reverse (21203010121), we get a palindrome (33304040333).

The spelling of 12101030212 in words is "twelve billion, one hundred one million, thirty thousand, two hundred twelve".