10201021122111 has 4 divisors (see below), whose sum is σ = 13601361496152. Its totient is φ = 6800680748072.

The previous prime is 10201021122101. The next prime is 10201021122191. The reversal of 10201021122111 is 11122112010201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10201021122111 - 2¹¹ = 10201021120063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201021122101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700170187016 + ... + 1700170187021.

It is an arithmetic number, because the mean of its divisors is an integer number (3400340374038).

Almost surely, 2^{10201021122111} is an apocalyptic number.

10201021122111 is a deficient number, since it is larger than the sum of its proper divisors (3400340374041).

10201021122111 is an equidigital number, since it uses as much as digits as its factorization.

10201021122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400340374040.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10201021122111 its reverse (11122112010201), we get a palindrome (21323133132312).

The spelling of 10201021122111 in words is "ten trillion, two hundred one billion, twenty-one million, one hundred twenty-two thousand, one hundred eleven".