221412665510051 has 2 divisors, whose sum is σ = 221412665510052. Its totient is φ = 221412665510050.

The previous prime is 221412665510027. The next prime is 221412665510087. The reversal of 221412665510051 is 150015566214122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221412665510051 - 2¹⁰ = 221412665509027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221412665509990 and 221412665510008.

It is not a weakly prime, because it can be changed into another prime (221412665510951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110706332755025 + 110706332755026.

It is an arithmetic number, because the mean of its divisors is an integer number (110706332755026).

Almost surely, 2^{221412665510051} is an apocalyptic number.

221412665510051 is a deficient number, since it is larger than the sum of its proper divisors (1).

221412665510051 is an equidigital number, since it uses as much as digits as its factorization.

221412665510051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 221412665510051 in words is "two hundred twenty-one trillion, four hundred twelve billion, six hundred sixty-five million, five hundred ten thousand, fifty-one".