210001002222 has 32 divisors (see below), whose sum is σ = 458209511424. Its totient is φ = 63633124800.

The previous prime is 210001002199. The next prime is 210001002229. The reversal of 210001002222 is 222200100012.

It is a junction number, because it is equal to n+sod(n) for n = 210001002198 and 210001002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210001002229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1260522 + ... + 1417362.

It is an arithmetic number, because the mean of its divisors is an integer number (14319047232).

Almost surely, 2^210001002222 is an apocalyptic number.

210001002222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210001002222 is an abundant number, since it is smaller than the sum of its proper divisors (248208509202).

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

210001002222 is a wasteful number, since it uses less digits than its factorization.

210001002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177144.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 210001002222 its reverse (222200100012), we get a palindrome (432201102234).

The spelling of 210001002222 in words is "two hundred ten billion, one million, two thousand, two hundred twenty-two".