20401040122 has 8 divisors (see below), whose sum is σ = 30608839872. Its totient is φ = 10198093500.

The previous prime is 20401040083. The next prime is 20401040137. The reversal of 20401040122 is 22104010402.

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 = 20401040096 and 20401040105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202754 + ... + 1219597.

It is an arithmetic number, because the mean of its divisors is an integer number (3826104984).

Almost surely, 2^20401040122 is an apocalyptic number.

20401040122 is a deficient number, since it is larger than the sum of its proper divisors (10207799750).

20401040122 is a wasteful number, since it uses less digits than its factorization.

20401040122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426564.

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

Adding to 20401040122 its reverse (22104010402), we get a palindrome (42505050524).

The spelling of 20401040122 in words is "twenty billion, four hundred one million, forty thousand, one hundred twenty-two".