10121211212 has 48 divisors (see below), whose sum is σ = 20468814912. Its totient is φ = 4289260800.

The previous prime is 10121211211. The next prime is 10121211223. The reversal of 10121211212 is 21211212101.

10121211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (10121211211) 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 15 ways as a sum of consecutive naturals, for example, 2862998 + ... + 2866530.

It is an arithmetic number, because the mean of its divisors is an integer number (426433644).

Almost surely, 2^10121211212 is an apocalyptic number.

It is an amenable number.

10121211212 is an abundant number, since it is smaller than the sum of its proper divisors (10347603700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10121211212 is a wasteful number, since it uses less digits than its factorization.

10121211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658 (or 4656 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10121211212 its reverse (21211212101), we get a palindrome (31332423313).

It can be divided in two parts, 101 and 21211212, that multiplied together give a palindrome (2142332412).

The spelling of 10121211212 in words is "ten billion, one hundred twenty-one million, two hundred eleven thousand, two hundred twelve".