10111222020001 has 4 divisors (see below), whose sum is σ = 10111228418692. Its totient is φ = 10111215621312.

The previous prime is 10111222019999. The next prime is 10111222020017. The reversal of 10111222020001 is 10002022211101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3010835750976 + 7100386269025 = 1735176^2 + 2664655^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111222020001 - 2¹ = 10111222019999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10111222020041) 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, 1070221 + ... + 4622533.

It is an arithmetic number, because the mean of its divisors is an integer number (2527807104673).

Almost surely, 2^{10111222020001} is an apocalyptic number.

It is an amenable number.

10111222020001 is a deficient number, since it is larger than the sum of its proper divisors (6398691).

10111222020001 is an equidigital number, since it uses as much as digits as its factorization.

10111222020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6398690.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10111222020001 its reverse (10002022211101), we get a palindrome (20113244231102).

The spelling of 10111222020001 in words is "ten trillion, one hundred eleven billion, two hundred twenty-two million, twenty thousand, one".