10001222022 has 64 divisors (see below), whose sum is σ = 22159111680. Its totient is φ = 2983814400.

The previous prime is 10001222017. The next prime is 10001222039. The reversal of 10001222022 is 22022210001.

It is a junction number, because it is equal to n+sod(n) for n = 10001221989 and 10001222007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5589504 + ... + 5591292.

It is an arithmetic number, because the mean of its divisors is an integer number (346236120).

Almost surely, 2^10001222022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10001222022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11079555840).

10001222022 is an abundant number, since it is smaller than the sum of its proper divisors (12157889658).

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

10001222022 is a wasteful number, since it uses less digits than its factorization.

10001222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069.

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

Adding to 10001222022 its reverse (22022210001), we get a palindrome (32023432023).

The spelling of 10001222022 in words is "ten billion, one million, two hundred twenty-two thousand, twenty-two".