20401324122 has 32 divisors (see below), whose sum is σ = 41680882944. Its totient is φ = 6654139200.

The previous prime is 20401324087. The next prime is 20401324187. The reversal of 20401324122 is 22142310402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1872972 + ... + 1883832.

It is an arithmetic number, because the mean of its divisors is an integer number (1302527592).

Almost surely, 2^20401324122 is an apocalyptic number.

20401324122 is an abundant number, since it is smaller than the sum of its proper divisors (21279558822).

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

20401324122 is a wasteful number, since it uses less digits than its factorization.

20401324122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17574.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20401324122 its reverse (22142310402), we get a palindrome (42543634524).

The spelling of 20401324122 in words is "twenty billion, four hundred one million, three hundred twenty-four thousand, one hundred twenty-two".