2021996228 has 12 divisors (see below), whose sum is σ = 4043992512. Its totient is φ = 866569800.

The previous prime is 2021996213. The next prime is 2021996233. The reversal of 2021996228 is 8226991202.

2021996228 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36107048 + ... + 36107103.

It is an arithmetic number, because the mean of its divisors is an integer number (336999376).

Almost surely, 2^2021996228 is an apocalyptic number.

2021996228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2021996228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2021996228 is a wasteful number, since it uses less digits than its factorization.

2021996228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72214162 (or 72214160 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2021996228 is about 44966.6123696238. The cubic root of 2021996228 is about 1264.5231379202.

The spelling of 2021996228 in words is "two billion, twenty-one million, nine hundred ninety-six thousand, two hundred twenty-eight".