22221031011 has 4 divisors (see below), whose sum is σ = 29628041352. Its totient is φ = 14814020672.

The previous prime is 22221031003. The next prime is 22221031033. The reversal of 22221031011 is 11013012222.

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 22221031011 - 2³ = 22221031003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221031051) 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, 3703505166 + ... + 3703505171.

It is an arithmetic number, because the mean of its divisors is an integer number (7407010338).

Almost surely, 2^22221031011 is an apocalyptic number.

22221031011 is a deficient number, since it is larger than the sum of its proper divisors (7407010341).

22221031011 is an equidigital number, since it uses as much as digits as its factorization.

22221031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407010340.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22221031011 its reverse (11013012222), we get a palindrome (33234043233).

The spelling of 22221031011 in words is "twenty-two billion, two hundred twenty-one million, thirty-one thousand, eleven".