20105022195 has 24 divisors (see below), whose sum is σ = 35698676832. Its totient is φ = 10461148800.

The previous prime is 20105022167. The next prime is 20105022227. The reversal of 20105022195 is 59122050102.

It is not a de Polignac number, because 20105022195 - 2⁹ = 20105021683 is a prime.

It is a super-2 number, since 2×20105022195² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 5446671 + ... + 5450360.

It is an arithmetic number, because the mean of its divisors is an integer number (1487444868).

Almost surely, 2^20105022195 is an apocalyptic number.

20105022195 is a deficient number, since it is larger than the sum of its proper divisors (15593654637).

20105022195 is a wasteful number, since it uses less digits than its factorization.

20105022195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10897083 (or 10897080 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 20105022195 its reverse (59122050102), we get a palindrome (79227072297).

It can be divided in two parts, 2010 and 5022195, that added together give a palindrome (5024205).

The spelling of 20105022195 in words is "twenty billion, one hundred five million, twenty-two thousand, one hundred ninety-five".