10001211212 has 12 divisors (see below), whose sum is σ = 17609495736. Its totient is φ = 4969926720.

The previous prime is 10001211211. The next prime is 10001211217. The reversal of 10001211212 is 21211210001.

10001211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10001211193 and 10001211202.

It is not an unprimeable number, because it can be changed into a prime (10001211211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7668989 + ... + 7670292.

It is an arithmetic number, because the mean of its divisors is an integer number (1467457978).

Almost surely, 2^10001211212 is an apocalyptic number.

It is an amenable number.

10001211212 is a deficient number, since it is larger than the sum of its proper divisors (7608284524).

10001211212 is a wasteful number, since it uses less digits than its factorization.

10001211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15339448 (or 15339446 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10001211212 its reverse (21211210001), we get a palindrome (31212421213).

The spelling of 10001211212 in words is "ten billion, one million, two hundred eleven thousand, two hundred twelve".