22220540145211 has 4 divisors (see below), whose sum is σ = 22220899687072. Its totient is φ = 22220180603352.

The previous prime is 22220540145143. The next prime is 22220540145269. The reversal of 22220540145211 is 11254104502222.

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 22220540145211 - 2²⁷ = 22220405927483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220540142211) 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, 179678211 + ... + 179801836.

It is an arithmetic number, because the mean of its divisors is an integer number (5555224921768).

Almost surely, 2^{22220540145211} is an apocalyptic number.

22220540145211 is a deficient number, since it is larger than the sum of its proper divisors (359541861).

22220540145211 is an equidigital number, since it uses as much as digits as its factorization.

22220540145211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359541860.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 22220540145211 its reverse (11254104502222), we get a palindrome (33474644647433).

The spelling of 22220540145211 in words is "twenty-two trillion, two hundred twenty billion, five hundred forty million, one hundred forty-five thousand, two hundred eleven".