2231331022211 has 4 divisors (see below), whose sum is σ = 2235132268152. Its totient is φ = 2227529776272.

The previous prime is 2231331022183. The next prime is 2231331022267. The reversal of 2231331022211 is 1122201331322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2231331022211 - 2¹⁰ = 2231331021187 is a prime.

It is a super-3 number, since 3×2231331022211³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231333022211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1900622090 + ... + 1900623263.

It is an arithmetic number, because the mean of its divisors is an integer number (558783067038).

Almost surely, 2^{2231331022211} is an apocalyptic number.

2231331022211 is a deficient number, since it is larger than the sum of its proper divisors (3801245941).

2231331022211 is an equidigital number, since it uses as much as digits as its factorization.

2231331022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801245940.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2231331022211 its reverse (1122201331322), we get a palindrome (3353532353533).

The spelling of 2231331022211 in words is "two trillion, two hundred thirty-one billion, three hundred thirty-one million, twenty-two thousand, two hundred eleven".