221312010124703 has 2 divisors, whose sum is σ = 221312010124704. Its totient is φ = 221312010124702.

The previous prime is 221312010124693. The next prime is 221312010124741. The reversal of 221312010124703 is 307421010213122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221312010124703 - 2²⁰ = 221312009076127 is a prime.

It is a super-2 number, since 2×221312010124703² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221312010124753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110656005062351 + 110656005062352.

It is an arithmetic number, because the mean of its divisors is an integer number (110656005062352).

Almost surely, 2^{221312010124703} is an apocalyptic number.

221312010124703 is a deficient number, since it is larger than the sum of its proper divisors (1).

221312010124703 is an equidigital number, since it uses as much as digits as its factorization.

221312010124703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 221312010124703 its reverse (307421010213122), we get a palindrome (528733020337825).

The spelling of 221312010124703 in words is "two hundred twenty-one trillion, three hundred twelve billion, ten million, one hundred twenty-four thousand, seven hundred three".