210002223220 has 24 divisors (see below), whose sum is σ = 441074526984. Its totient is φ = 83987582976.

The previous prime is 210002223199. The next prime is 210002223241. The reversal of 210002223220 is 22322200012.

It is an interprime number because it is at equal distance from previous prime (210002223199) and next prime (210002223241).

It can be written as a sum of positive squares in 4 ways, for example, as 23872104036 + 186130119184 = 154506^2 + 431428^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210002223194 and 210002223203.

It is a congruent number.

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, 701737 + ... + 955216.

It is an arithmetic number, because the mean of its divisors is an integer number (18378105291).

Almost surely, 2^210002223220 is an apocalyptic number.

210002223220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210002223220 is an abundant number, since it is smaller than the sum of its proper divisors (231072303764).

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

210002223220 is a wasteful number, since it uses less digits than its factorization.

210002223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663299 (or 1663297 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 210002223220 its reverse (22322200012), we get a palindrome (232324423232).

The spelling of 210002223220 in words is "two hundred ten billion, two million, two hundred twenty-three thousand, two hundred twenty".