201222020020 has 48 divisors (see below), whose sum is σ = 485435155968. Its totient is φ = 68632934400.

The previous prime is 201222019991. The next prime is 201222020039. The reversal of 201222020020 is 20020222102.

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, 3696556 + ... + 3750595.

It is an arithmetic number, because the mean of its divisors is an integer number (10113232416).

Almost surely, 2^201222020020 is an apocalyptic number.

201222020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222020020 is an abundant number, since it is smaller than the sum of its proper divisors (284213135948).

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

201222020020 is a wasteful number, since it uses less digits than its factorization.

201222020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7447360 (or 7447358 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 201222020020 its reverse (20020222102), we get a palindrome (221242242122).

The spelling of 201222020020 in words is "two hundred one billion, two hundred twenty-two million, twenty thousand, twenty".