10112211221001 has 24 divisors (see below), whose sum is σ = 13860639525600. Its totient is φ = 6557644559232.

The previous prime is 10112211220999. The next prime is 10112211221011. The reversal of 10112211221001 is 10012211221101.

It is a happy number.

It is not a de Polignac number, because 10112211221001 - 2¹ = 10112211220999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10112211221011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16358650 + ... + 16965548.

It is an arithmetic number, because the mean of its divisors is an integer number (577526646900).

Almost surely, 2^{10112211221001} is an apocalyptic number.

It is an amenable number.

10112211221001 is a deficient number, since it is larger than the sum of its proper divisors (3748428304599).

10112211221001 is an equidigital number, since it uses as much as digits as its factorization.

10112211221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611033 (or 610996 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10112211221001 its reverse (10012211221101), we get a palindrome (20124422442102).

The spelling of 10112211221001 in words is "ten trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, one".