100100120222220 has 24 divisors (see below), whose sum is σ = 280280336622384. Its totient is φ = 26693365392576.

The previous prime is 100100120222191. The next prime is 100100120222281. The reversal of 100100120222220 is 22222021001001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100100120222220.

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 7 ways as a sum of consecutive naturals, for example, 834167668459 + ... + 834167668578.

It is an arithmetic number, because the mean of its divisors is an integer number (11678347359266).

Almost surely, 2^{100100120222220} is an apocalyptic number.

100100120222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100100120222220 is an abundant number, since it is smaller than the sum of its proper divisors (180180216400164).

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

100100120222220 is a wasteful number, since it uses less digits than its factorization.

100100120222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668335337049 (or 1668335337047 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100100120222220 its reverse (22222021001001), we get a palindrome (122322141223221).

The spelling of 100100120222220 in words is "one hundred trillion, one hundred billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty".