1220231300051 has 2 divisors, whose sum is σ = 1220231300052. Its totient is φ = 1220231300050.

The previous prime is 1220231300011. The next prime is 1220231300083. The reversal of 1220231300051 is 1500031320221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220231300051 - 2²⁶ = 1220164191187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220231299996 and 1220231300032.

It is not a weakly prime, because it can be changed into another prime (1220231300011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610115650025 + 610115650026.

It is an arithmetic number, because the mean of its divisors is an integer number (610115650026).

Almost surely, 2^{1220231300051} is an apocalyptic number.

1220231300051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220231300051 is an equidigital number, since it uses as much as digits as its factorization.

1220231300051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 1220231300051 its reverse (1500031320221), we get a palindrome (2720262620272).

The spelling of 1220231300051 in words is "one trillion, two hundred twenty billion, two hundred thirty-one million, three hundred thousand, fifty-one".