220223121247 has 2 divisors, whose sum is σ = 220223121248. Its totient is φ = 220223121246.

The previous prime is 220223121221. The next prime is 220223121269. The reversal of 220223121247 is 742121322022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220223121247 - 2¹⁹ = 220222596959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220223121347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111560623 + 110111560624.

It is an arithmetic number, because the mean of its divisors is an integer number (110111560624).

Almost surely, 2^220223121247 is an apocalyptic number.

220223121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

220223121247 is an equidigital number, since it uses as much as digits as its factorization.

220223121247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 220223121247 its reverse (742121322022), we get a palindrome (962344443269).

The spelling of 220223121247 in words is "two hundred twenty billion, two hundred twenty-three million, one hundred twenty-one thousand, two hundred forty-seven".