10012112221 has 8 divisors (see below), whose sum is σ = 10807678080. Its totient is φ = 9246567792.

The previous prime is 10012112179. The next prime is 10012112239. The reversal of 10012112221 is 12221121001.

10012112221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10012112221 is a prime.

It is a super-2 number, since 2×10012112221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012112281) 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 7 ways as a sum of consecutive naturals, for example, 7504665 + ... + 7505998.

It is an arithmetic number, because the mean of its divisors is an integer number (1350959760).

Almost surely, 2^10012112221 is an apocalyptic number.

It is an amenable number.

10012112221 is a deficient number, since it is larger than the sum of its proper divisors (795565859).

10012112221 is a wasteful number, since it uses less digits than its factorization.

10012112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15010715.

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

Adding to 10012112221 its reverse (12221121001), we get a palindrome (22233233222).

The spelling of 10012112221 in words is "ten billion, twelve million, one hundred twelve thousand, two hundred twenty-one".