210222021222 has 16 divisors (see below), whose sum is σ = 467160047280. Its totient is φ = 70074007056.

The previous prime is 210222021221. The next prime is 210222021253. The reversal of 210222021222 is 222120222012.

210222021222 is a `hidden beast` number, since 210 + 2 + 220 + 212 + 22 = 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 = 210222021195 and 210222021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210222021221) 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, 1946500143 + ... + 1946500250.

It is an arithmetic number, because the mean of its divisors is an integer number (29197502955).

Almost surely, 2^210222021222 is an apocalyptic number.

210222021222 is an abundant number, since it is smaller than the sum of its proper divisors (256938026058).

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

210222021222 is a wasteful number, since it uses less digits than its factorization.

210222021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893000404 (or 3893000398 counting only the distinct ones).

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

Adding to 210222021222 its reverse (222120222012), we get a palindrome (432342243234).

The spelling of 210222021222 in words is "two hundred ten billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty-two".