201451222547 has 2 divisors, whose sum is σ = 201451222548. Its totient is φ = 201451222546.

The previous prime is 201451222543. The next prime is 201451222591. The reversal of 201451222547 is 745222154102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201451222547 - 2² = 201451222543 is a prime.

It is a super-3 number, since 3×201451222547³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (201451222543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100725611273 + 100725611274.

It is an arithmetic number, because the mean of its divisors is an integer number (100725611274).

Almost surely, 2^201451222547 is an apocalyptic number.

201451222547 is a deficient number, since it is larger than the sum of its proper divisors (1).

201451222547 is an equidigital number, since it uses as much as digits as its factorization.

201451222547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44800, while the sum is 35.

Adding to 201451222547 its reverse (745222154102), we get a palindrome (946673376649).

The spelling of 201451222547 in words is "two hundred one billion, four hundred fifty-one million, two hundred twenty-two thousand, five hundred forty-seven".