40201110221 has 2 divisors, whose sum is σ = 40201110222. Its totient is φ = 40201110220.

The previous prime is 40201110197. The next prime is 40201110253. The reversal of 40201110221 is 12201110204.

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., 25526452900 + 14674657321 = 159770^2 + 121139^2 .

It is a cyclic number.

It is not a de Polignac number, because 40201110221 - 2²⁶ = 40134001357 is a prime.

It is a super-2 number, since 2×40201110221² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40201110196 and 40201110205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40200110221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20100555110 + 20100555111.

It is an arithmetic number, because the mean of its divisors is an integer number (20100555111).

Almost surely, 2^40201110221 is an apocalyptic number.

It is an amenable number.

40201110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

40201110221 is an equidigital number, since it uses as much as digits as its factorization.

40201110221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 40201110221 its reverse (12201110204), we get a palindrome (52402220425).

The spelling of 40201110221 in words is "forty billion, two hundred one million, one hundred ten thousand, two hundred twenty-one".