2302132021220 has 24 divisors (see below), whose sum is σ = 5118858259704. Its totient is φ = 866684996096.

The previous prime is 2302132021193. The next prime is 2302132021289. The reversal of 2302132021220 is 221202312032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 299550425344 + 2002581595876 = 547312^2 + 1415126^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2302132021192 and 2302132021201.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3385487927 + ... + 3385488606.

It is an arithmetic number, because the mean of its divisors is an integer number (213285760821).

Almost surely, 2^{2302132021220} is an apocalyptic number.

2302132021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2302132021220 is an abundant number, since it is smaller than the sum of its proper divisors (2816726238484).

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

2302132021220 is a wasteful number, since it uses less digits than its factorization.

2302132021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770976559 (or 6770976557 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2302132021220 its reverse (221202312032), we get a palindrome (2523334333252).

The spelling of 2302132021220 in words is "two trillion, three hundred two billion, one hundred thirty-two million, twenty-one thousand, two hundred twenty".