201020220228 has 24 divisors (see below), whose sum is σ = 485221222080. Its totient is φ = 64696162720.

The previous prime is 201020220227. The next prime is 201020220283. The reversal of 201020220228 is 822022020102.

It is not an unprimeable number, because it can be changed into a prime (201020220227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288821808 + ... + 288822503.

It is an arithmetic number, because the mean of its divisors is an integer number (20217550920).

Almost surely, 2^201020220228 is an apocalyptic number.

It is an amenable number.

201020220228 is an abundant number, since it is smaller than the sum of its proper divisors (284201001852).

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

201020220228 is a wasteful number, since it uses less digits than its factorization.

201020220228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577644347 (or 577644345 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The spelling of 201020220228 in words is "two hundred one billion, twenty million, two hundred twenty thousand, two hundred twenty-eight".