1000100100222 has 24 divisors (see below), whose sum is σ = 2166959206776. Its totient is φ = 333355060656.

The previous prime is 1000100100221. The next prime is 1000100100247. The reversal of 1000100100222 is 2220010010001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000100100221) 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 11 ways as a sum of consecutive naturals, for example, 432028 + ... + 1478799.

It is an arithmetic number, because the mean of its divisors is an integer number (90289966949).

Almost surely, 2^{1000100100222} is an apocalyptic number.

1000100100222 is an abundant number, since it is smaller than the sum of its proper divisors (1166859106554).

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

1000100100222 is a wasteful number, since it uses less digits than its factorization.

1000100100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939912 (or 1939909 counting only the distinct ones).

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

Adding to 1000100100222 its reverse (2220010010001), we get a palindrome (3220110110223).

The spelling of 1000100100222 in words is "one trillion, one hundred million, one hundred thousand, two hundred twenty-two".