20404010122 has 8 divisors (see below), whose sum is σ = 30629187972. Its totient is φ = 10194280800.

The previous prime is 20404010087. The next prime is 20404010129. The reversal of 20404010122 is 22101040402.

It can be written as a sum of positive squares in 2 ways, for example, as 13052834001 + 7351176121 = 114249^2 + 85739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20404010096 and 20404010105.

It is not an unprimeable number, because it can be changed into a prime (20404010129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3858829 + ... + 3864112.

Almost surely, 2^20404010122 is an apocalyptic number.

20404010122 is a deficient number, since it is larger than the sum of its proper divisors (10225177850).

20404010122 is a wasteful number, since it uses less digits than its factorization.

20404010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7724264.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20404010122 its reverse (22101040402), we get a palindrome (42505050524).

The spelling of 20404010122 in words is "twenty billion, four hundred four million, ten thousand, one hundred twenty-two".