221414265321097 has 2 divisors, whose sum is σ = 221414265321098. Its totient is φ = 221414265321096.

The previous prime is 221414265321071. The next prime is 221414265321143. The reversal of 221414265321097 is 790123562414122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125989422699001 + 95424842622096 = 11224501^2 + 9768564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221414265321097 is a prime.

It is a super-3 number, since 3×221414265321097³ (a number of 44 digits) contains 333 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 221414265321097.

It is not a weakly prime, because it can be changed into another prime (221414265321397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110707132660548 + 110707132660549.

It is an arithmetic number, because the mean of its divisors is an integer number (110707132660549).

Almost surely, 2^{221414265321097} is an apocalyptic number.

It is an amenable number.

221414265321097 is a deficient number, since it is larger than the sum of its proper divisors (1).

221414265321097 is an equidigital number, since it uses as much as digits as its factorization.

221414265321097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 221414265321097 in words is "two hundred twenty-one trillion, four hundred fourteen billion, two hundred sixty-five million, three hundred twenty-one thousand, ninety-seven".