221002212012733 has 2 divisors, whose sum is σ = 221002212012734. Its totient is φ = 221002212012732.

The previous prime is 221002212012721. The next prime is 221002212012761. The reversal of 221002212012733 is 337210212200122.

It is a happy number.

It is an a-pointer prime, because the next prime (221002212012761) can be obtained adding 221002212012733 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199049969769049 + 21952242243684 = 14108507^2 + 4685322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221002212012733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221002212012713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501106006366 + 110501106006367.

It is an arithmetic number, because the mean of its divisors is an integer number (110501106006367).

Almost surely, 2^{221002212012733} is an apocalyptic number.

It is an amenable number.

221002212012733 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002212012733 is an equidigital number, since it uses as much as digits as its factorization.

221002212012733 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 28.

Adding to 221002212012733 its reverse (337210212200122), we get a palindrome (558212424212855).

The spelling of 221002212012733 in words is "two hundred twenty-one trillion, two billion, two hundred twelve million, twelve thousand, seven hundred thirty-three".