1010112221 has 8 divisors (see below), whose sum is σ = 1014034560. Its totient is φ = 1006198128.

The previous prime is 1010112193. The next prime is 1010112223. The reversal of 1010112221 is 1222110101.

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-1010112221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010112223) 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, 348440 + ... + 351326.

It is an arithmetic number, because the mean of its divisors is an integer number (126754320).

Almost surely, 2^1010112221 is an apocalyptic number.

It is an amenable number.

1010112221 is a deficient number, since it is larger than the sum of its proper divisors (3922339).

1010112221 is an equidigital number, since it uses as much as digits as its factorization.

1010112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123.

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

The square root of 1010112221 is about 31782.2626790479. The cubic root of 1010112221 is about 1003.3594418458.

Adding to 1010112221 its reverse (1222110101), we get a palindrome (2232222322).

It can be divided in two parts, 10101 and 12221, that multiplied together give a palindrome (123444321).

The spelling of 1010112221 in words is "one billion, ten million, one hundred twelve thousand, two hundred twenty-one".