210001222010 has 8 divisors (see below), whose sum is σ = 378002199636. Its totient is φ = 84000488800.

The previous prime is 210001222009. The next prime is 210001222033. The reversal of 210001222010 is 10222100012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 207843898201 + 2157323809 = 455899^2 + 46447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 210001221982 and 210001222000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10500061091 + ... + 10500061110.

Almost surely, 2^210001222010 is an apocalyptic number.

210001222010 is a deficient number, since it is larger than the sum of its proper divisors (168000977626).

210001222010 is a wasteful number, since it uses less digits than its factorization.

210001222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21000122208.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210001222010 its reverse (10222100012), we get a palindrome (220223322022).

The spelling of 210001222010 in words is "two hundred ten billion, one million, two hundred twenty-two thousand, ten".