110011020021257 has 2 divisors, whose sum is σ = 110011020021258. Its totient is φ = 110011020021256.

The previous prime is 110011020021209. The next prime is 110011020021281. The reversal of 110011020021257 is 752120020110011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107040460913296 + 2970559107961 = 10346036^2 + 1723531^2 .

It is a cyclic number.

It is not a de Polignac number, because 110011020021257 - 2²² = 110011015826953 is a prime.

It is a super-2 number, since 2×110011020021257² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (110011020021457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55005510010628 + 55005510010629.

It is an arithmetic number, because the mean of its divisors is an integer number (55005510010629).

Almost surely, 2^{110011020021257} is an apocalyptic number.

It is an amenable number.

110011020021257 is a deficient number, since it is larger than the sum of its proper divisors (1).

110011020021257 is an equidigital number, since it uses as much as digits as its factorization.

110011020021257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 110011020021257 its reverse (752120020110011), we get a palindrome (862131040131268).

The spelling of 110011020021257 in words is "one hundred ten trillion, eleven billion, twenty million, twenty-one thousand, two hundred fifty-seven".