221200300973 has 2 divisors, whose sum is σ = 221200300974. Its totient is φ = 221200300972.

The previous prime is 221200300967. The next prime is 221200301009. The reversal of 221200300973 is 379003002122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221142586564 + 57714409 = 470258^2 + 7597^2 .

It is a cyclic number.

It is not a de Polignac number, because 221200300973 - 2¹⁰ = 221200299949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221200300903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600150486 + 110600150487.

It is an arithmetic number, because the mean of its divisors is an integer number (110600150487).

Almost surely, 2^221200300973 is an apocalyptic number.

It is an amenable number.

221200300973 is a deficient number, since it is larger than the sum of its proper divisors (1).

221200300973 is an equidigital number, since it uses as much as digits as its factorization.

221200300973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The spelling of 221200300973 in words is "two hundred twenty-one billion, two hundred million, three hundred thousand, nine hundred seventy-three".