10201220011001 has 4 divisors (see below), whose sum is σ = 10801291776372. Its totient is φ = 9601148245632.

The previous prime is 10201220010959. The next prime is 10201220011013. The reversal of 10201220011001 is 10011002210201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5822935781776 + 4378284229225 = 2413076^2 + 2092435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10201220011001 is a prime.

It is a super-2 number, since 2×10201220011001² (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 (10201220031001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300035882660 + ... + 300035882693.

It is an arithmetic number, because the mean of its divisors is an integer number (2700322944093).

Almost surely, 2^{10201220011001} is an apocalyptic number.

It is an amenable number.

10201220011001 is a deficient number, since it is larger than the sum of its proper divisors (600071765371).

10201220011001 is an equidigital number, since it uses as much as digits as its factorization.

10201220011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600071765370.

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

Adding to 10201220011001 its reverse (10011002210201), we get a palindrome (20212222221202).

The spelling of 10201220011001 in words is "ten trillion, two hundred one billion, two hundred twenty million, eleven thousand, one".