20122122195 has 48 divisors (see below), whose sum is σ = 41613109920. Its totient is φ = 9198681408.

The previous prime is 20122122193. The next prime is 20122122211. The reversal of 20122122195 is 59122122102.

It is a happy number.

It is not a de Polignac number, because 20122122195 - 2¹ = 20122122193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20122122193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1514332 + ... + 1527561.

It is an arithmetic number, because the mean of its divisors is an integer number (866939790).

Almost surely, 2^20122122195 is an apocalyptic number.

20122122195 is an abundant number, since it is smaller than the sum of its proper divisors (21490987725).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122122195 is a wasteful number, since it uses less digits than its factorization.

20122122195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041921 (or 3041908 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 20122122195 its reverse (59122122102), we get a palindrome (79244244297).

The spelling of 20122122195 in words is "twenty billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred ninety-five".