4401225211561 has 2 divisors, whose sum is σ = 4401225211562. Its totient is φ = 4401225211560.

The previous prime is 4401225211547. The next prime is 4401225211583. The reversal of 4401225211561 is 1651125221044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3876346696336 + 524878515225 = 1968844^2 + 724485^2 .

It is a cyclic number.

It is not a de Polignac number, because 4401225211561 - 2¹³ = 4401225203369 is a prime.

It is not a weakly prime, because it can be changed into another prime (4401205211561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200612605780 + 2200612605781.

It is an arithmetic number, because the mean of its divisors is an integer number (2200612605781).

Almost surely, 2^{4401225211561} is an apocalyptic number.

It is an amenable number.

4401225211561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4401225211561 is an equidigital number, since it uses as much as digits as its factorization.

4401225211561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 4401225211561 in words is "four trillion, four hundred one billion, two hundred twenty-five million, two hundred eleven thousand, five hundred sixty-one".