1111210221001 has 8 divisors (see below), whose sum is σ = 1119816016704. Its totient is φ = 1102606293360.

The previous prime is 1111210220999. The next prime is 1111210221013. The reversal of 1111210221001 is 1001220121111.

It is a happy number.

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 1111210221001 - 2¹ = 1111210220999 is a prime.

It is a super-2 number, since 2×1111210221001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111210224001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739300 + ... + 1664026.

It is an arithmetic number, because the mean of its divisors is an integer number (139977002088).

Almost surely, 2^{1111210221001} is an apocalyptic number.

It is an amenable number.

1111210221001 is a deficient number, since it is larger than the sum of its proper divisors (8605795703).

1111210221001 is an equidigital number, since it uses as much as digits as its factorization.

1111210221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934031.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1111210221001 its reverse (1001220121111), we get a palindrome (2112430342112).

The spelling of 1111210221001 in words is "one trillion, one hundred eleven billion, two hundred ten million, two hundred twenty-one thousand, one".