44226212621 has 2 divisors, whose sum is σ = 44226212622. Its totient is φ = 44226212620.

The previous prime is 44226212603. The next prime is 44226212627. The reversal of 44226212621 is 12621262244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42512666596 + 1713546025 = 206186^2 + 41395^2 .

It is a cyclic number.

It is not a de Polignac number, because 44226212621 - 2²² = 44222018317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44226212627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22113106310 + 22113106311.

It is an arithmetic number, because the mean of its divisors is an integer number (22113106311).

Almost surely, 2^44226212621 is an apocalyptic number.

It is an amenable number.

44226212621 is a deficient number, since it is larger than the sum of its proper divisors (1).

44226212621 is an equidigital number, since it uses as much as digits as its factorization.

44226212621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 32.

Adding to 44226212621 its reverse (12621262244), we get a palindrome (56847474865).

The spelling of 44226212621 in words is "forty-four billion, two hundred twenty-six million, two hundred twelve thousand, six hundred twenty-one".