221230120130311 has 2 divisors, whose sum is σ = 221230120130312. Its totient is φ = 221230120130310.

The previous prime is 221230120130281. The next prime is 221230120130323. The reversal of 221230120130311 is 113031021032122.

221230120130311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221230120130311 - 2⁷ = 221230120130183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221230120130351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110615060065155 + 110615060065156.

It is an arithmetic number, because the mean of its divisors is an integer number (110615060065156).

Almost surely, 2^{221230120130311} is an apocalyptic number.

221230120130311 is a deficient number, since it is larger than the sum of its proper divisors (1).

221230120130311 is an equidigital number, since it uses as much as digits as its factorization.

221230120130311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 221230120130311 its reverse (113031021032122), we get a palindrome (334261141162433).

The spelling of 221230120130311 in words is "two hundred twenty-one trillion, two hundred thirty billion, one hundred twenty million, one hundred thirty thousand, three hundred eleven".