201220213020 has 48 divisors (see below), whose sum is σ = 564279518880. Its totient is φ = 53576540416.

The previous prime is 201220212983. The next prime is 201220213027. The reversal of 201220213020 is 20312022102.

It is a happy number.

201220213020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220213027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2528715 + ... + 2607074.

It is an arithmetic number, because the mean of its divisors is an integer number (11755823310).

Almost surely, 2^201220213020 is an apocalyptic number.

201220213020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201220213020 is an abundant number, since it is smaller than the sum of its proper divisors (363059305860).

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

201220213020 is a wasteful number, since it uses less digits than its factorization.

201220213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5136454 (or 5136452 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 201220213020 its reverse (20312022102), we get a palindrome (221532235122).

The spelling of 201220213020 in words is "two hundred one billion, two hundred twenty million, two hundred thirteen thousand, twenty".