2212021212100 has 72 divisors (see below), whose sum is σ = 5522142754688. Its totient is φ = 753384672000.

The previous prime is 2212021211963. The next prime is 2212021212139. The reversal of 2212021212100 is 12121202122.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 10357977 + ... + 10569376.

Almost surely, 2^{2212021212100} is an apocalyptic number.

2212021212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212021212100 is an abundant number, since it is smaller than the sum of its proper divisors (3310121542588).

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

2212021212100 is a wasteful number, since it uses less digits than its factorization.

2212021212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20927525 (or 20927518 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2212021212100 its reverse (12121202122), we get a palindrome (2224142414222).

The spelling of 2212021212100 in words is "two trillion, two hundred twelve billion, twenty-one million, two hundred twelve thousand, one hundred".