101021444 has 6 divisors (see below), whose sum is σ = 176787534. Its totient is φ = 50510720.

The previous prime is 101021443. The next prime is 101021449. The reversal of 101021444 is 444120101.

It can be written as a sum of positive squares in only one way, i.e., 55323844 + 45697600 = 7438^2 + 6760^2 .

It is not an unprimeable number, because it can be changed into a prime (101021443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12627677 + ... + 12627684.

It is an arithmetic number, because the mean of its divisors is an integer number (29464589).

Almost surely, 2^101021444 is an apocalyptic number.

It is an amenable number.

101021444 is a deficient number, since it is larger than the sum of its proper divisors (75766090).

101021444 is a wasteful number, since it uses less digits than its factorization.

101021444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25255365 (or 25255363 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 101021444 is about 10050.9424433732. The cubic root of 101021444 is about 465.7339071649.

Adding to 101021444 its reverse (444120101), we get a palindrome (545141545).

The spelling of 101021444 in words is "one hundred one million, twenty-one thousand, four hundred forty-four".