44536022243221 has 2 divisors, whose sum is σ = 44536022243222. Its totient is φ = 44536022243220.

The previous prime is 44536022243147. The next prime is 44536022243261. The reversal of 44536022243221 is 12234222063544.

It is an a-pointer prime, because the next prime (44536022243261) can be obtained adding 44536022243221 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32397668691025 + 12138353552196 = 5691895^2 + 3484014^2 .

It is a cyclic number.

It is not a de Polignac number, because 44536022243221 - 2⁷ = 44536022243093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44536022243261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22268011121610 + 22268011121611.

It is an arithmetic number, because the mean of its divisors is an integer number (22268011121611).

Almost surely, 2^{44536022243221} is an apocalyptic number.

It is an amenable number.

44536022243221 is a deficient number, since it is larger than the sum of its proper divisors (1).

44536022243221 is an equidigital number, since it uses as much as digits as its factorization.

44536022243221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 40.

The spelling of 44536022243221 in words is "forty-four trillion, five hundred thirty-six billion, twenty-two million, two hundred forty-three thousand, two hundred twenty-one".