11112210021001 has 2 divisors, whose sum is σ = 11112210021002. Its totient is φ = 11112210021000.

The previous prime is 11112210020957. The next prime is 11112210021091. The reversal of 11112210021001 is 10012001221111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7219780911225 + 3892429109776 = 2686965^2 + 1972924^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112210021001 - 2¹¹ = 11112210018953 is a prime.

It is a super-2 number, since 2×11112210021001² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11112210021091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556105010500 + 5556105010501.

It is an arithmetic number, because the mean of its divisors is an integer number (5556105010501).

Almost surely, 2^{11112210021001} is an apocalyptic number.

It is an amenable number.

11112210021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112210021001 is an equidigital number, since it uses as much as digits as its factorization.

11112210021001 is an evil number, because the sum of its binary digits is even.

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

Adding to 11112210021001 its reverse (10012001221111), we get a palindrome (21124211242112).

The spelling of 11112210021001 in words is "eleven trillion, one hundred twelve billion, two hundred ten million, twenty-one thousand, one".