20001512203422 has 16 divisors (see below), whose sum is σ = 40370024632080. Its totient is φ = 6606004030272.

The previous prime is 20001512203289. The next prime is 20001512203481. The reversal of 20001512203422 is 22430221510002.

It is a junction number, because it is equal to n+sod(n) for n = 20001512203392 and 20001512203401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15291675343 + ... + 15291676650.

It is an arithmetic number, because the mean of its divisors is an integer number (2523126539505).

Almost surely, 2^{20001512203422} is an apocalyptic number.

20001512203422 is an abundant number, since it is smaller than the sum of its proper divisors (20368512428658).

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

20001512203422 is a wasteful number, since it uses less digits than its factorization.

20001512203422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30583352107.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20001512203422 its reverse (22430221510002), we get a palindrome (42431733713424).

The spelling of 20001512203422 in words is "twenty trillion, one billion, five hundred twelve million, two hundred three thousand, four hundred twenty-two".