105220209511 has 2 divisors, whose sum is σ = 105220209512. Its totient is φ = 105220209510.

The previous prime is 105220209481. The next prime is 105220209527. The reversal of 105220209511 is 115902022501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105220209511 - 2³³ = 96630274919 is a prime.

It is a super-2 number, since 2×105220209511² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105220209511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105220209551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52610104755 + 52610104756.

It is an arithmetic number, because the mean of its divisors is an integer number (52610104756).

Almost surely, 2^105220209511 is an apocalyptic number.

105220209511 is a deficient number, since it is larger than the sum of its proper divisors (1).

105220209511 is an equidigital number, since it uses as much as digits as its factorization.

105220209511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 105220209511 in words is "one hundred five billion, two hundred twenty million, two hundred nine thousand, five hundred eleven".