2101223240001 has 8 divisors (see below), whose sum is σ = 3112923318560. Its totient is φ = 1400815493316.

The previous prime is 2101223239987. The next prime is 2101223240021. The reversal of 2101223240001 is 1000423221012.

It is a happy number.

2101223240001 is a `hidden beast` number, since 21 + 0 + 12 + 232 + 400 + 0 + 1 = 666.

It is not a de Polignac number, because 2101223240001 - 2⁶ = 2101223239937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101223240021) 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, 38911541455 + ... + 38911541508.

It is an arithmetic number, because the mean of its divisors is an integer number (389115414820).

Almost surely, 2^{2101223240001} is an apocalyptic number.

It is an amenable number.

2101223240001 is a deficient number, since it is larger than the sum of its proper divisors (1011700078559).

2101223240001 is an equidigital number, since it uses as much as digits as its factorization.

2101223240001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77823082972 (or 77823082966 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2101223240001 its reverse (1000423221012), we get a palindrome (3101646461013).

The spelling of 2101223240001 in words is "two trillion, one hundred one billion, two hundred twenty-three million, two hundred forty thousand, one".