221200110149 has 2 divisors, whose sum is σ = 221200110150. Its totient is φ = 221200110148.

The previous prime is 221200110073. The next prime is 221200110193. The reversal of 221200110149 is 941011002122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189272853025 + 31927257124 = 435055^2 + 178682^2 .

It is a cyclic number.

It is not a de Polignac number, because 221200110149 - 2¹⁶ = 221200044613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221200110049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600055074 + 110600055075.

It is an arithmetic number, because the mean of its divisors is an integer number (110600055075).

Almost surely, 2^221200110149 is an apocalyptic number.

It is an amenable number.

221200110149 is a deficient number, since it is larger than the sum of its proper divisors (1).

221200110149 is an equidigital number, since it uses as much as digits as its factorization.

221200110149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 221200110149 in words is "two hundred twenty-one billion, two hundred million, one hundred ten thousand, one hundred forty-nine".