221120212100089 has 2 divisors, whose sum is σ = 221120212100090. Its totient is φ = 221120212100088.

The previous prime is 221120212100009. The next prime is 221120212100131. The reversal of 221120212100089 is 980001212021122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158736942837225 + 62383269262864 = 12599085^2 + 7898308^2 .

It is a cyclic number.

It is not a de Polignac number, because 221120212100089 - 2⁷ = 221120212099961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221120212100089.

It is not a weakly prime, because it can be changed into another prime (221120212100009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110560106050044 + 110560106050045.

It is an arithmetic number, because the mean of its divisors is an integer number (110560106050045).

Almost surely, 2^{221120212100089} is an apocalyptic number.

It is an amenable number.

221120212100089 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120212100089 is an equidigital number, since it uses as much as digits as its factorization.

221120212100089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 221120212100089 in words is "two hundred twenty-one trillion, one hundred twenty billion, two hundred twelve million, one hundred thousand, eighty-nine".