2212001021100 has 72 divisors (see below), whose sum is σ = 6892368322000. Its totient is φ = 544492558080.

The previous prime is 2212001021099. The next prime is 2212001021161. The reversal of 2212001021100 is 11201002122.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 283585975 + ... + 283593774.

Almost surely, 2^{2212001021100} is an apocalyptic number.

2212001021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212001021100 is an abundant number, since it is smaller than the sum of its proper divisors (4680367300900).

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

2212001021100 is a wasteful number, since it uses less digits than its factorization.

2212001021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567179779 (or 567179772 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2212001021100 its reverse (11201002122), we get a palindrome (2223202023222).

The spelling of 2212001021100 in words is "two trillion, two hundred twelve billion, one million, twenty-one thousand, one hundred".