2212221203231 has 8 divisors (see below), whose sum is σ = 2382843264144. Its totient is φ = 2041663599360.

The previous prime is 2212221203209. The next prime is 2212221203237. The reversal of 2212221203231 is 1323021222122.

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 2212221203231 - 2²² = 2212217008927 is a prime.

It is a super-2 number, since 2×2212221203231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212221203197 and 2212221203206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212221203237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16042961 + ... + 16180266.

It is an arithmetic number, because the mean of its divisors is an integer number (297855408018).

Almost surely, 2^{2212221203231} is an apocalyptic number.

2212221203231 is a deficient number, since it is larger than the sum of its proper divisors (170622060913).

2212221203231 is a wasteful number, since it uses less digits than its factorization.

2212221203231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32228521.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2212221203231 its reverse (1323021222122), we get a palindrome (3535242425353).

The spelling of 2212221203231 in words is "two trillion, two hundred twelve billion, two hundred twenty-one million, two hundred three thousand, two hundred thirty-one".