2100121222 has 8 divisors (see below), whose sum is σ = 3150995400. Its totient is φ = 1049789424.

The previous prime is 2100121189. The next prime is 2100121253. The reversal of 2100121222 is 2221210012.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125772 + ... + 141487.

It is an arithmetic number, because the mean of its divisors is an integer number (393874425).

Almost surely, 2^2100121222 is an apocalyptic number.

2100121222 is a deficient number, since it is larger than the sum of its proper divisors (1050874178).

2100121222 is a wasteful number, since it uses less digits than its factorization.

2100121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271190.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2100121222 is about 45827.0795709262. The cubic root of 2100121222 is about 1280.6038048892.

Adding to 2100121222 its reverse (2221210012), we get a palindrome (4321331234).

The spelling of 2100121222 in words is "two billion, one hundred million, one hundred twenty-one thousand, two hundred twenty-two".