2212200121021 has 8 divisors (see below), whose sum is σ = 2417062433184. Its totient is φ = 2007963343920.

The previous prime is 2212200121013. The next prime is 2212200121039. The reversal of 2212200121021 is 1201210022122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2212200121021 - 2³ = 2212200121013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212200120986 and 2212200121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212200131021) 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 7 ways as a sum of consecutive naturals, for example, 156376366 + ... + 156390511.

It is an arithmetic number, because the mean of its divisors is an integer number (302132804148).

Almost surely, 2^{2212200121021} is an apocalyptic number.

It is an amenable number.

2212200121021 is a deficient number, since it is larger than the sum of its proper divisors (204862312163).

2212200121021 is a wasteful number, since it uses less digits than its factorization.

2212200121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312767531.

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

Adding to 2212200121021 its reverse (1201210022122), we get a palindrome (3413410143143).

The spelling of 2212200121021 in words is "two trillion, two hundred twelve billion, two hundred million, one hundred twenty-one thousand, twenty-one".