2021032220 has 96 divisors (see below), whose sum is σ = 4422116160. Its totient is φ = 775526400.

The previous prime is 2021032217. The next prime is 2021032249. The reversal of 2021032220 is 222301202.

It is a junction number, because it is equal to n+sod(n) for n = 2021032195 and 2021032204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14751992 + ... + 14752128.

It is an arithmetic number, because the mean of its divisors is an integer number (46063710).

Almost surely, 2^2021032220 is an apocalyptic number.

2021032220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021032220 is an abundant number, since it is smaller than the sum of its proper divisors (2401083940).

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

2021032220 is a wasteful number, since it uses less digits than its factorization.

2021032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2021032220 is about 44955.8919386547. The cubic root of 2021032220 is about 1264.3221477336.

Adding to 2021032220 its reverse (222301202), we get a palindrome (2243333422).

The spelling of 2021032220 in words is "two billion, twenty-one million, thirty-two thousand, two hundred twenty".