10012121212 has 24 divisors (see below), whose sum is σ = 19038333440. Its totient is φ = 4589596080.

The previous prime is 10012121159. The next prime is 10012121267. The reversal of 10012121212 is 21212121001.

10012121212 is a modest number, since divided by 121212 gives 10012 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 10012121192 and 10012121201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2122458 + ... + 2127169.

Almost surely, 2^10012121212 is an apocalyptic number.

It is an amenable number.

10012121212 is a deficient number, since it is larger than the sum of its proper divisors (9026212228).

10012121212 is a wasteful number, since it uses less digits than its factorization.

10012121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249681 (or 4249679 counting only the distinct ones).

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

Adding to 10012121212 its reverse (21212121001), we get a palindrome (31224242213).

It can be divided in two parts, 1001 and 2121212, that multiplied together give a palindrome (2123333212).

The spelling of 10012121212 in words is "ten billion, twelve million, one hundred twenty-one thousand, two hundred twelve".