221441011243 has 2 divisors, whose sum is σ = 221441011244. Its totient is φ = 221441011242.

The previous prime is 221441011223. The next prime is 221441011291. The reversal of 221441011243 is 342110144122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221441011243 - 2⁹ = 221441010731 is a prime.

It is a super-2 number, since 2×221441011243² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221441011223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110720505621 + 110720505622.

It is an arithmetic number, because the mean of its divisors is an integer number (110720505622).

Almost surely, 2^221441011243 is an apocalyptic number.

221441011243 is a deficient number, since it is larger than the sum of its proper divisors (1).

221441011243 is an equidigital number, since it uses as much as digits as its factorization.

221441011243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 221441011243 its reverse (342110144122), we get a palindrome (563551155365).

The spelling of 221441011243 in words is "two hundred twenty-one billion, four hundred forty-one million, eleven thousand, two hundred forty-three".