7221174412541 has 2 divisors, whose sum is σ = 7221174412542. Its totient is φ = 7221174412540.

The previous prime is 7221174412537. The next prime is 7221174412561. The reversal of 7221174412541 is 1452144711227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6492278520025 + 728895892516 = 2547995^2 + 853754^2 .

It is a cyclic number.

It is not a de Polignac number, because 7221174412541 - 2² = 7221174412537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7221174412561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610587206270 + 3610587206271.

It is an arithmetic number, because the mean of its divisors is an integer number (3610587206271).

Almost surely, 2^{7221174412541} is an apocalyptic number.

It is an amenable number.

7221174412541 is a deficient number, since it is larger than the sum of its proper divisors (1).

7221174412541 is an equidigital number, since it uses as much as digits as its factorization.

7221174412541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125440, while the sum is 41.

The spelling of 7221174412541 in words is "seven trillion, two hundred twenty-one billion, one hundred seventy-four million, four hundred twelve thousand, five hundred forty-one".