221002021220089 has 2 divisors, whose sum is σ = 221002021220090. Its totient is φ = 221002021220088.

The previous prime is 221002021220063. The next prime is 221002021220129. The reversal of 221002021220089 is 980022120200122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124587453515625 + 96414567704464 = 11161875^2 + 9819092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221002021220089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221002021220089.

It is not a weakly prime, because it can be changed into another prime (221002021220989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501010610044 + 110501010610045.

It is an arithmetic number, because the mean of its divisors is an integer number (110501010610045).

Almost surely, 2^{221002021220089} is an apocalyptic number.

It is an amenable number.

221002021220089 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002021220089 is an equidigital number, since it uses as much as digits as its factorization.

221002021220089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 221002021220089 in words is "two hundred twenty-one trillion, two billion, twenty-one million, two hundred twenty thousand, eighty-nine".