221430627653351 has 2 divisors, whose sum is σ = 221430627653352. Its totient is φ = 221430627653350.

The previous prime is 221430627653311. The next prime is 221430627653369. The reversal of 221430627653351 is 153356726034122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221430627653351 is a prime.

It is a super-3 number, since 3×221430627653351³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221430627653351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221430627653311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110715313826675 + 110715313826676.

It is an arithmetic number, because the mean of its divisors is an integer number (110715313826676).

Almost surely, 2^{221430627653351} is an apocalyptic number.

221430627653351 is a deficient number, since it is larger than the sum of its proper divisors (1).

221430627653351 is an equidigital number, since it uses as much as digits as its factorization.

221430627653351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 50.

The spelling of 221430627653351 in words is "two hundred twenty-one trillion, four hundred thirty billion, six hundred twenty-seven million, six hundred fifty-three thousand, three hundred fifty-one".