201422423220 has 48 divisors (see below), whose sum is σ = 564015359040. Its totient is φ = 53709543936.

The previous prime is 201422423131. The next prime is 201422423299. The reversal of 201422423220 is 22324224102.

It is a congruent number.

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, 1065804 + ... + 1240476.

It is an arithmetic number, because the mean of its divisors is an integer number (11750319980).

Almost surely, 2^201422423220 is an apocalyptic number.

201422423220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201422423220 is an abundant number, since it is smaller than the sum of its proper divisors (362592935820).

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

201422423220 is a wasteful number, since it uses less digits than its factorization.

201422423220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193904 (or 193902 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 201422423220 its reverse (22324224102), we get a palindrome (223746647322).

The spelling of 201422423220 in words is "two hundred one billion, four hundred twenty-two million, four hundred twenty-three thousand, two hundred twenty".