44245641151221 has 16 divisors (see below), whose sum is σ = 59201440216128. Its totient is φ = 29393627155200.

The previous prime is 44245641151097. The next prime is 44245641151237. The reversal of 44245641151221 is 12215114654244.

It is not a de Polignac number, because 44245641151221 - 2⁷ = 44245641151093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44245641191221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18769351 + ... + 20994756.

It is an arithmetic number, because the mean of its divisors is an integer number (3700090013508).

Almost surely, 2^{44245641151221} is an apocalyptic number.

It is an amenable number.

44245641151221 is a deficient number, since it is larger than the sum of its proper divisors (14955799064907).

44245641151221 is a wasteful number, since it uses less digits than its factorization.

44245641151221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39765412.

The product of its digits is 307200, while the sum is 42.

The spelling of 44245641151221 in words is "forty-four trillion, two hundred forty-five billion, six hundred forty-one million, one hundred fifty-one thousand, two hundred twenty-one".