212200011021 has 16 divisors (see below), whose sum is σ = 291019902848. Its totient is φ = 137434968000.

The previous prime is 212200010993. The next prime is 212200011061. The reversal of 212200011021 is 120110002212.

It is not a de Polignac number, because 212200011021 - 2³³ = 203610076429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212200010988 and 212200011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200011061) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1372705 + ... + 1519446.

It is an arithmetic number, because the mean of its divisors is an integer number (18188743928).

Almost surely, 2^212200011021 is an apocalyptic number.

It is an amenable number.

212200011021 is a deficient number, since it is larger than the sum of its proper divisors (78819891827).

212200011021 is a wasteful number, since it uses less digits than its factorization.

212200011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892852.

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

Adding to 212200011021 its reverse (120110002212), we get a palindrome (332310013233).

The spelling of 212200011021 in words is "two hundred twelve billion, two hundred million, eleven thousand, twenty-one".