10011121212 has 48 divisors (see below), whose sum is σ = 23855882400. Its totient is φ = 3266841600.

The previous prime is 10011121207. The next prime is 10011121229. The reversal of 10011121212 is 21212111001.

10011121212 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 (12).

It is a congruent number.

It is an unprimeable number.

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, 61464 + ... + 154272.

It is an arithmetic number, because the mean of its divisors is an integer number (496997550).

Almost surely, 2^10011121212 is an apocalyptic number.

10011121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10011121212 is an abundant number, since it is smaller than the sum of its proper divisors (13844761188).

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

10011121212 is a wasteful number, since it uses less digits than its factorization.

10011121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93006 (or 93004 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10011121212 its reverse (21212111001), we get a palindrome (31223232213).

The spelling of 10011121212 in words is "ten billion, eleven million, one hundred twenty-one thousand, two hundred twelve".