20401010422 has 24 divisors (see below), whose sum is σ = 34279208640. Its totient is φ = 9091162080.

The previous prime is 20401010387. The next prime is 20401010449. The reversal of 20401010422 is 22401010402.

It is a junction number, because it is equal to n+sod(n) for n = 20401010396 and 20401010405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1030854 + ... + 1050457.

It is an arithmetic number, because the mean of its divisors is an integer number (1428300360).

Almost surely, 2^20401010422 is an apocalyptic number.

20401010422 is a deficient number, since it is larger than the sum of its proper divisors (13878198218).

20401010422 is a wasteful number, since it uses less digits than its factorization.

20401010422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081368 (or 2081355 counting only the distinct ones).

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

Adding to 20401010422 its reverse (22401010402), we get a palindrome (42802020824).

The spelling of 20401010422 in words is "twenty billion, four hundred one million, ten thousand, four hundred twenty-two".