2021233220 has 24 divisors (see below), whose sum is σ = 4307944704. Its totient is φ = 796425696.

The previous prime is 2021233187. The next prime is 2021233259. The reversal of 2021233220 is 223321202.

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, 752852 + ... + 755531.

It is an arithmetic number, because the mean of its divisors is an integer number (179497696).

Almost surely, 2^2021233220 is an apocalyptic number.

2021233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021233220 is an abundant number, since it is smaller than the sum of its proper divisors (2286711484).

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

2021233220 is a wasteful number, since it uses less digits than its factorization.

2021233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508459 (or 1508457 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2021233220 is about 44958.1274076223. The cubic root of 2021233220 is about 1264.3640603636.

Adding to 2021233220 its reverse (223321202), we get a palindrome (2244554422).

The spelling of 2021233220 in words is "two billion, twenty-one million, two hundred thirty-three thousand, two hundred twenty".