201421487488220 has 24 divisors (see below), whose sum is σ = 423017579204304. Its totient is φ = 80562412999296.

The previous prime is 201421487488217. The next prime is 201421487488283. The reversal of 201421487488220 is 22884784124102.

201421487488220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 386107574 + ... + 386628893.

It is an arithmetic number, because the mean of its divisors is an integer number (17625732466846).

Almost surely, 2^{201421487488220} is an apocalyptic number.

201421487488220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201421487488220 is an abundant number, since it is smaller than the sum of its proper divisors (221596091716084).

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

201421487488220 is a wasteful number, since it uses less digits than its factorization.

201421487488220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772749509 (or 772749507 counting only the distinct ones).

The product of its (nonzero) digits is 3670016, while the sum is 53.

The spelling of 201421487488220 in words is "two hundred one trillion, four hundred twenty-one billion, four hundred eighty-seven million, four hundred eighty-eight thousand, two hundred twenty".