2231222021011 has 4 divisors (see below), whose sum is σ = 2240111352024. Its totient is φ = 2222332690000.

The previous prime is 2231222020981. The next prime is 2231222021023. The reversal of 2231222021011 is 1101202221322.

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 2231222021011 - 2¹⁵ = 2231221988243 is a prime.

It is a super-3 number, since 3×2231222021011³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231222021011.

It is not an unprimeable number, because it can be changed into a prime (2231222021711) 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, 4444665130 + ... + 4444665631.

It is an arithmetic number, because the mean of its divisors is an integer number (560027838006).

Almost surely, 2^{2231222021011} is an apocalyptic number.

2231222021011 is a deficient number, since it is larger than the sum of its proper divisors (8889331013).

2231222021011 is an equidigital number, since it uses as much as digits as its factorization.

2231222021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8889331012.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2231222021011 its reverse (1101202221322), we get a palindrome (3332424242333).

The spelling of 2231222021011 in words is "two trillion, two hundred thirty-one billion, two hundred twenty-two million, twenty-one thousand, eleven".