10112211221 has 8 divisors (see below), whose sum is σ = 11626016640. Its totient is φ = 8615706768.

The previous prime is 10112211209. The next prime is 10112211223. The reversal of 10112211221 is 12211221101.

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

It is a cyclic number.

It is not a de Polignac number, because 10112211221 - 2³⁰ = 9038469397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10112211196 and 10112211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112211223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4323986 + ... + 4326323.

It is an arithmetic number, because the mean of its divisors is an integer number (1453252080).

Almost surely, 2^10112211221 is an apocalyptic number.

It is an amenable number.

10112211221 is a deficient number, since it is larger than the sum of its proper divisors (1513805419).

10112211221 is an equidigital number, since it uses as much as digits as its factorization.

10112211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650483.

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

Adding to 10112211221 its reverse (12211221101), we get a palindrome (22323432322).

It can be divided in two parts, 101 and 12211221, that multiplied together give a palindrome (1233333321).

The spelling of 10112211221 in words is "ten billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty-one".