101444221 has 2 divisors, whose sum is σ = 101444222. Its totient is φ = 101444220.

The previous prime is 101444201. The next prime is 101444251. The reversal of 101444221 is 122444101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99780121 + 1664100 = 9989^2 + 1290^2 .

It is a cyclic number.

It is not a de Polignac number, because 101444221 - 2⁷ = 101444093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101444201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50722110 + 50722111.

It is an arithmetic number, because the mean of its divisors is an integer number (50722111).

Almost surely, 2^101444221 is an apocalyptic number.

It is an amenable number.

101444221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101444221 is an equidigital number, since it uses as much as digits as its factorization.

101444221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 101444221 is about 10071.9521940883. The cubic root of 101444221 is about 466.3827051955.

Adding to 101444221 its reverse (122444101), we get a palindrome (223888322).

It can be divided in two parts, 10144 and 4221, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 101444221 in words is "one hundred one million, four hundred forty-four thousand, two hundred twenty-one".