1057221285551 has 2 divisors, whose sum is σ = 1057221285552. Its totient is φ = 1057221285550.

The previous prime is 1057221285487. The next prime is 1057221285553. The reversal of 1057221285551 is 1555821227501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1057221285551 - 2⁶ = 1057221285487 is a prime.

It is a super-2 number, since 2×1057221285551² (a number of 25 digits) contains 22 as substring.

Together with 1057221285553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057221285553) 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, 528610642775 + 528610642776.

It is an arithmetic number, because the mean of its divisors is an integer number (528610642776).

Almost surely, 2^{1057221285551} is an apocalyptic number.

1057221285551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057221285551 is an equidigital number, since it uses as much as digits as its factorization.

1057221285551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280000, while the sum is 44.

The spelling of 1057221285551 in words is "one trillion, fifty-seven billion, two hundred twenty-one million, two hundred eighty-five thousand, five hundred fifty-one".