10001211022001 has 4 divisors (see below), whose sum is σ = 10003574819904. Its totient is φ = 9998847224100.

The previous prime is 10001211021979. The next prime is 10001211022003. The reversal of 10001211022001 is 10022011210001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001211022001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001211022003) 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 3 ways as a sum of consecutive naturals, for example, 1181892605 + ... + 1181901066.

It is an arithmetic number, because the mean of its divisors is an integer number (2500893704976).

Almost surely, 2^{10001211022001} is an apocalyptic number.

It is an amenable number.

10001211022001 is a deficient number, since it is larger than the sum of its proper divisors (2363797903).

10001211022001 is an equidigital number, since it uses as much as digits as its factorization.

10001211022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363797902.

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

Adding to 10001211022001 its reverse (10022011210001), we get a palindrome (20023222232002).

The spelling of 10001211022001 in words is "ten trillion, one billion, two hundred eleven million, twenty-two thousand, one".