221135383463 has 2 divisors, whose sum is σ = 221135383464. Its totient is φ = 221135383462.

The previous prime is 221135383367. The next prime is 221135383471. The reversal of 221135383463 is 364383531122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221135383463 - 2²² = 221131189159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221135383463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221135385463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110567691731 + 110567691732.

It is an arithmetic number, because the mean of its divisors is an integer number (110567691732).

Almost surely, 2^221135383463 is an apocalyptic number.

221135383463 is a deficient number, since it is larger than the sum of its proper divisors (1).

221135383463 is an equidigital number, since it uses as much as digits as its factorization.

221135383463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 41.

The spelling of 221135383463 in words is "two hundred twenty-one billion, one hundred thirty-five million, three hundred eighty-three thousand, four hundred sixty-three".