20401142224 has 40 divisors (see below), whose sum is σ = 40578618080. Its totient is φ = 9930791808.

The previous prime is 20401142221. The next prime is 20401142261. The reversal of 20401142224 is 42224110402.

It is a junction number, because it is equal to n+sod(n) for n = 20401142195 and 20401142204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401142221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162922 + ... + 259510.

It is an arithmetic number, because the mean of its divisors is an integer number (1014465452).

Almost surely, 2^20401142224 is an apocalyptic number.

It is an amenable number.

20401142224 is a deficient number, since it is larger than the sum of its proper divisors (20177475856).

20401142224 is a wasteful number, since it uses less digits than its factorization.

20401142224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96947 (or 96941 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20401142224 its reverse (42224110402), we get a palindrome (62625252626).

The spelling of 20401142224 in words is "twenty billion, four hundred one million, one hundred forty-two thousand, two hundred twenty-four".