10021111122001 has 8 divisors (see below), whose sum is σ = 11452871693504. Its totient is φ = 8589393867600.

The previous prime is 10021111121981. The next prime is 10021111122013. The reversal of 10021111122001 is 10022111112001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10021111122001 - 2²³ = 10021102733393 is a prime.

It is a super-2 number, since 2×10021111122001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021111122091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10332015 + ... + 11260228.

It is an arithmetic number, because the mean of its divisors is an integer number (1431608961688).

Almost surely, 2^{10021111122001} is an apocalyptic number.

It is an amenable number.

10021111122001 is a deficient number, since it is larger than the sum of its proper divisors (1431760571503).

10021111122001 is an equidigital number, since it uses as much as digits as its factorization.

10021111122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21658551.

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

Adding to 10021111122001 its reverse (10022111112001), we get a palindrome (20043222234002).

The spelling of 10021111122001 in words is "ten trillion, twenty-one billion, one hundred eleven million, one hundred twenty-two thousand, one".