221054334031 has 2 divisors, whose sum is σ = 221054334032. Its totient is φ = 221054334030.

The previous prime is 221054334013. The next prime is 221054334071. The reversal of 221054334031 is 130433450122.

It is a happy number.

Together with previous prime (221054334013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221054334031 - 2¹⁵ = 221054301263 is a prime.

It is a super-2 number, since 2×221054334031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221054334071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110527167015 + 110527167016.

It is an arithmetic number, because the mean of its divisors is an integer number (110527167016).

Almost surely, 2^221054334031 is an apocalyptic number.

221054334031 is a deficient number, since it is larger than the sum of its proper divisors (1).

221054334031 is an equidigital number, since it uses as much as digits as its factorization.

221054334031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 221054334031 its reverse (130433450122), we get a palindrome (351487784153).

The spelling of 221054334031 in words is "two hundred twenty-one billion, fifty-four million, three hundred thirty-four thousand, thirty-one".