201223220269 has 2 divisors, whose sum is σ = 201223220270. Its totient is φ = 201223220268.

The previous prime is 201223220171. The next prime is 201223220291. The reversal of 201223220269 is 962022322102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191380000900 + 9843219369 = 437470^2 + 99213^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201223220269 is a prime.

It is a super-4 number, since 4×201223220269⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 201223220269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201223220069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100611610134 + 100611610135.

It is an arithmetic number, because the mean of its divisors is an integer number (100611610135).

Almost surely, 2^201223220269 is an apocalyptic number.

It is an amenable number.

201223220269 is a deficient number, since it is larger than the sum of its proper divisors (1).

201223220269 is an equidigital number, since it uses as much as digits as its factorization.

201223220269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 201223220269 in words is "two hundred one billion, two hundred twenty-three million, two hundred twenty thousand, two hundred sixty-nine".