210101222221002 has 96 divisors (see below), whose sum is σ = 546348545433600. Its totient is φ = 59269060803888.

The previous prime is 210101222221001. The next prime is 210101222221019. The reversal of 210101222221002 is 200122222101012.

It is a happy number.

210101222221002 is a `hidden beast` number, since 210 + 10 + 1 + 222 + 221 + 0 + 0 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (210101222221001) 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 47 ways as a sum of consecutive naturals, for example, 390605602 + ... + 391143117.

It is an arithmetic number, because the mean of its divisors is an integer number (5691130681600).

Almost surely, 2^{210101222221002} is an apocalyptic number.

210101222221002 is an abundant number, since it is smaller than the sum of its proper divisors (336247323212598).

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

210101222221002 is an equidigital number, since it uses as much as digits as its factorization.

210101222221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781748822 (or 781748810 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210101222221002 its reverse (200122222101012), we get a palindrome (410223444322014).

The spelling of 210101222221002 in words is "two hundred ten trillion, one hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, two".