210001210001022 has 256 divisors, whose sum is σ = 495017958251520. Its totient is φ = 58772799590400.

The previous prime is 210001210000991. The next prime is 210001210001129. The reversal of 210001210001022 is 220100012100012.

It is a junction number, because it is equal to n+sod(n) for n = 210001210000989 and 210001210001007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9689520378 + ... + 9689542050.

It is an arithmetic number, because the mean of its divisors is an integer number (1933663899420).

Almost surely, 2^{210001210001022} is an apocalyptic number.

210001210001022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 210001210001022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247508979125760).

210001210001022 is an abundant number, since it is smaller than the sum of its proper divisors (285016748250498).

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

210001210001022 is a wasteful number, since it uses less digits than its factorization.

210001210001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24059.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210001210001022 its reverse (220100012100012), we get a palindrome (430101222101034).

The spelling of 210001210001022 in words is "two hundred ten trillion, one billion, two hundred ten million, one thousand, twenty-two".