100001210022 has 96 divisors (see below), whose sum is σ = 254496153600. Its totient is φ = 27779713344.

The previous prime is 100001210011. The next prime is 100001210027. The reversal of 100001210022 is 220012100001.

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 = 100001209986 and 100001210013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001210027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7261179 + ... + 7274937.

It is an arithmetic number, because the mean of its divisors is an integer number (2651001600).

Almost surely, 2^100001210022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100001210022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127248076800).

100001210022 is an abundant number, since it is smaller than the sum of its proper divisors (154494943578).

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

100001210022 is a wasteful number, since it uses less digits than its factorization.

100001210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15370 (or 15367 counting only the distinct ones).

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

Adding to 100001210022 its reverse (220012100001), we get a palindrome (320013310023).

The spelling of 100001210022 in words is "one hundred billion, one million, two hundred ten thousand, twenty-two".