2130221020 has 24 divisors (see below), whose sum is σ = 4482450000. Its totient is φ = 850376832.

The previous prime is 2130221011. The next prime is 2130221021. The reversal of 2130221020 is 201220312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130221021) 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, 96745 + ... + 116704.

It is an arithmetic number, because the mean of its divisors is an integer number (186768750).

Almost surely, 2^2130221020 is an apocalyptic number.

2130221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130221020 is an abundant number, since it is smaller than the sum of its proper divisors (2352228980).

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

2130221020 is a wasteful number, since it uses less digits than its factorization.

2130221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213957 (or 213955 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2130221020 is about 46154.3174578500. The cubic root of 2130221020 is about 1286.6928528173.

Adding to 2130221020 its reverse (201220312), we get a palindrome (2331441332).

The spelling of 2130221020 in words is "two billion, one hundred thirty million, two hundred twenty-one thousand, twenty".