221020002111143 has 2 divisors, whose sum is σ = 221020002111144. Its totient is φ = 221020002111142.

The previous prime is 221020002111109. The next prime is 221020002111193. The reversal of 221020002111143 is 341111200020122.

221020002111143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221020002111143 - 2¹⁸ = 221020001848999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221020002111193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110510001055571 + 110510001055572.

It is an arithmetic number, because the mean of its divisors is an integer number (110510001055572).

Almost surely, 2^{221020002111143} is an apocalyptic number.

221020002111143 is a deficient number, since it is larger than the sum of its proper divisors (1).

221020002111143 is an equidigital number, since it uses as much as digits as its factorization.

221020002111143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 221020002111143 its reverse (341111200020122), we get a palindrome (562131202131265).

The spelling of 221020002111143 in words is "two hundred twenty-one trillion, twenty billion, two million, one hundred eleven thousand, one hundred forty-three".