11221210010001 has 32 divisors (see below), whose sum is σ = 15635225007360. Its totient is φ = 7144966692864.

The previous prime is 11221210009991. The next prime is 11221210010053. The reversal of 11221210010001 is 10001001212211.

It is not a de Polignac number, because 11221210010001 - 2¹⁷ = 11221209878929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221210010501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435035761 + ... + 435061553.

It is an arithmetic number, because the mean of its divisors is an integer number (488600781480).

Almost surely, 2^{11221210010001} is an apocalyptic number.

It is an amenable number.

11221210010001 is a deficient number, since it is larger than the sum of its proper divisors (4414014997359).

11221210010001 is a wasteful number, since it uses less digits than its factorization.

11221210010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34905.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11221210010001 its reverse (10001001212211), we get a palindrome (21222211222212).

The spelling of 11221210010001 in words is "eleven trillion, two hundred twenty-one billion, two hundred ten million, ten thousand, one".