109950221 has 2 divisors, whose sum is σ = 109950222. Its totient is φ = 109950220.

The previous prime is 109950193. The next prime is 109950241. The reversal of 109950221 is 122059901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63027721 + 46922500 = 7939^2 + 6850^2 .

It is a cyclic number.

It is not a de Polignac number, because 109950221 - 2¹⁰ = 109949197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109950241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54975110 + 54975111.

It is an arithmetic number, because the mean of its divisors is an integer number (54975111).

Almost surely, 2^109950221 is an apocalyptic number.

It is an amenable number.

109950221 is a deficient number, since it is larger than the sum of its proper divisors (1).

109950221 is an equidigital number, since it uses as much as digits as its factorization.

109950221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 109950221 is about 10485.7150924484. The cubic root of 109950221 is about 479.0696984103.

The spelling of 109950221 in words is "one hundred nine million, nine hundred fifty thousand, two hundred twenty-one".