20401333422 has 16 divisors (see below), whose sum is σ = 40809175680. Its totient is φ = 6799359672.

The previous prime is 20401333417. The next prime is 20401333457. The reversal of 20401333422 is 22433310402.

It is a super-2 number, since 2×20401333422² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20401333392 and 20401333401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229972 + ... + 306087.

It is an arithmetic number, because the mean of its divisors is an integer number (2550573480).

Almost surely, 2^20401333422 is an apocalyptic number.

20401333422 is an abundant number, since it is smaller than the sum of its proper divisors (20407842258).

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

20401333422 is a wasteful number, since it uses less digits than its factorization.

20401333422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542407.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20401333422 its reverse (22433310402), we get a palindrome (42834643824).

The spelling of 20401333422 in words is "twenty billion, four hundred one million, three hundred thirty-three thousand, four hundred twenty-two".