20102220228 has 12 divisors (see below), whose sum is σ = 46905180560. Its totient is φ = 6700740072.

The previous prime is 20102220221. The next prime is 20102220233. The reversal of 20102220228 is 82202220102.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20102220221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837592498 + ... + 837592521.

Almost surely, 2^20102220228 is an apocalyptic number.

It is an amenable number.

20102220228 is an abundant number, since it is smaller than the sum of its proper divisors (26802960332).

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

20102220228 is a wasteful number, since it uses less digits than its factorization.

20102220228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675185026 (or 1675185024 counting only the distinct ones).

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

The spelling of 20102220228 in words is "twenty billion, one hundred two million, two hundred twenty thousand, two hundred twenty-eight".