20410142122 has 4 divisors (see below), whose sum is σ = 30615213186. Its totient is φ = 10205071060.

The previous prime is 20410142117. The next prime is 20410142143. The reversal of 20410142122 is 22124101402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16292224881 + 4117917241 = 127641^2 + 64171^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20410142122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5102535529 + ... + 5102535532.

Almost surely, 2^20410142122 is an apocalyptic number.

20410142122 is a deficient number, since it is larger than the sum of its proper divisors (10205071064).

20410142122 is a wasteful number, since it uses less digits than its factorization.

20410142122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10205071063.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20410142122 its reverse (22124101402), we get a palindrome (42534243524).

The spelling of 20410142122 in words is "twenty billion, four hundred ten million, one hundred forty-two thousand, one hundred twenty-two".