110011010012221 has 2 divisors, whose sum is σ = 110011010012222. Its totient is φ = 110011010012220.

The previous prime is 110011010012161. The next prime is 110011010012243. The reversal of 110011010012221 is 122210010110011.

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., 71377388808196 + 38633621204025 = 8448514^2 + 6215595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110011010012221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110011010312221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55005505006110 + 55005505006111.

It is an arithmetic number, because the mean of its divisors is an integer number (55005505006111).

Almost surely, 2^{110011010012221} is an apocalyptic number.

It is an amenable number.

110011010012221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110011010012221 is an equidigital number, since it uses as much as digits as its factorization.

110011010012221 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 110011010012221 its reverse (122210010110011), we get a palindrome (232221020122232).

The spelling of 110011010012221 in words is "one hundred ten trillion, eleven billion, ten million, twelve thousand, two hundred twenty-one".