210212202222 has 24 divisors (see below), whose sum is σ = 496865205720. Its totient is φ = 63700667280.

The previous prime is 210212202197. The next prime is 210212202229. The reversal of 210212202222 is 222202212012.

210212202222 is a `hidden beast` number, since 210 + 212 + 20 + 2 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 210212202195 and 210212202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212202229) 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 11 ways as a sum of consecutive naturals, for example, 530838697 + ... + 530839092.

It is an arithmetic number, because the mean of its divisors is an integer number (20702716905).

Almost surely, 2^210212202222 is an apocalyptic number.

210212202222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210212202222 is an abundant number, since it is smaller than the sum of its proper divisors (286653003498).

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

210212202222 is a wasteful number, since it uses less digits than its factorization.

210212202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061677808 (or 1061677805 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 210212202222 its reverse (222202212012), we get a palindrome (432414414234).

The spelling of 210212202222 in words is "two hundred ten billion, two hundred twelve million, two hundred two thousand, two hundred twenty-two".