110221020031 has 2 divisors, whose sum is σ = 110221020032. Its totient is φ = 110221020030.

The previous prime is 110221020029. The next prime is 110221020047. The reversal of 110221020031 is 130020122011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 110221020031 - 2¹ = 110221020029 is a prime.

It is a super-2 number, since 2×110221020031² (a number of 23 digits) contains 22 as substring.

Together with 110221020029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 110221019993 and 110221020020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110221020431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55110510015 + 55110510016.

It is an arithmetic number, because the mean of its divisors is an integer number (55110510016).

Almost surely, 2^110221020031 is an apocalyptic number.

110221020031 is a deficient number, since it is larger than the sum of its proper divisors (1).

110221020031 is an equidigital number, since it uses as much as digits as its factorization.

110221020031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 110221020031 its reverse (130020122011), we get a palindrome (240241142042).

The spelling of 110221020031 in words is "one hundred ten billion, two hundred twenty-one million, twenty thousand, thirty-one".