2143220202 has 32 divisors (see below), whose sum is σ = 4809879360. Its totient is φ = 707331600.

The previous prime is 2143220171. The next prime is 2143220207. The reversal of 2143220202 is 2020223412.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2143220207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191028 + ... + 201935.

It is an arithmetic number, because the mean of its divisors is an integer number (150308730).

Almost surely, 2^2143220202 is an apocalyptic number.

2143220202 is an abundant number, since it is smaller than the sum of its proper divisors (2666659158).

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

2143220202 is a wasteful number, since it uses less digits than its factorization.

2143220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393075 (or 393069 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2143220202 is about 46294.9263094780. The cubic root of 2143220202 is about 1289.3047957716.

Adding to 2143220202 its reverse (2020223412), we get a palindrome (4163443614).

The spelling of 2143220202 in words is "two billion, one hundred forty-three million, two hundred twenty thousand, two hundred two".