210001001022 has 24 divisors (see below), whose sum is σ = 455032982664. Its totient is φ = 69995593104.

The previous prime is 210001000943. The next prime is 210001001039. The reversal of 210001001022 is 220100100012.

210001001022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 210001000995 and 210001001013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116568 + ... + 658475.

It is an arithmetic number, because the mean of its divisors is an integer number (18959707611).

Almost surely, 2^210001001022 is an apocalyptic number.

210001001022 is an abundant number, since it is smaller than the sum of its proper divisors (245031981642).

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

210001001022 is a wasteful number, since it uses less digits than its factorization.

210001001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790104 (or 790101 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210001001022 its reverse (220100100012), we get a palindrome (430101101034).

The spelling of 210001001022 in words is "two hundred ten billion, one million, one thousand, twenty-two".