221333002097 has 2 divisors, whose sum is σ = 221333002098. Its totient is φ = 221333002096.

The previous prime is 221333002061. The next prime is 221333002127. The reversal of 221333002097 is 790200333122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150201978481 + 71131023616 = 387559^2 + 266704^2 .

It is a cyclic number.

It is not a de Polignac number, because 221333002097 - 2²⁴ = 221316224881 is a prime.

It is not a weakly prime, because it can be changed into another prime (221333002057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110666501048 + 110666501049.

It is an arithmetic number, because the mean of its divisors is an integer number (110666501049).

Almost surely, 2^221333002097 is an apocalyptic number.

It is an amenable number.

221333002097 is a deficient number, since it is larger than the sum of its proper divisors (1).

221333002097 is an equidigital number, since it uses as much as digits as its factorization.

221333002097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The spelling of 221333002097 in words is "two hundred twenty-one billion, three hundred thirty-three million, two thousand, ninety-seven".