2100100221222 has 8 divisors (see below), whose sum is σ = 4200200442456. Its totient is φ = 700033407072.

The previous prime is 2100100221179. The next prime is 2100100221277. The reversal of 2100100221222 is 2221220010012.

It is a sphenic number, since it is the product of 3 distinct primes.

2100100221222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 175008351763 + ... + 175008351774.

It is an arithmetic number, because the mean of its divisors is an integer number (525025055307).

Almost surely, 2^{2100100221222} is an apocalyptic number.

2100100221222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2100100221222 is a wasteful number, since it uses less digits than its factorization.

2100100221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350016703542.

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

Adding to 2100100221222 its reverse (2221220010012), we get a palindrome (4321320231234).

The spelling of 2100100221222 in words is "two trillion, one hundred billion, one hundred million, two hundred twenty-one thousand, two hundred twenty-two".