44220030991 has 2 divisors, whose sum is σ = 44220030992. Its totient is φ = 44220030990.

The previous prime is 44220030979. The next prime is 44220031019. The reversal of 44220030991 is 19903002244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44220030991 - 2⁷ = 44220030863 is a prime.

It is a super-2 number, since 2×44220030991² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44220030961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22110015495 + 22110015496.

It is an arithmetic number, because the mean of its divisors is an integer number (22110015496).

Almost surely, 2^44220030991 is an apocalyptic number.

44220030991 is a deficient number, since it is larger than the sum of its proper divisors (1).

44220030991 is an equidigital number, since it uses as much as digits as its factorization.

44220030991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 44220030991 in words is "forty-four billion, two hundred twenty million, thirty thousand, nine hundred ninety-one".