22221202011 has 4 divisors (see below), whose sum is σ = 29628269352. Its totient is φ = 14814134672.

The previous prime is 22221202007. The next prime is 22221202021. The reversal of 22221202011 is 11020212222.

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 22221202011 - 2² = 22221202007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221202021) 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, 3703533666 + ... + 3703533671.

It is an arithmetic number, because the mean of its divisors is an integer number (7407067338).

Almost surely, 2^22221202011 is an apocalyptic number.

22221202011 is a deficient number, since it is larger than the sum of its proper divisors (7407067341).

22221202011 is an equidigital number, since it uses as much as digits as its factorization.

22221202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407067340.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22221202011 its reverse (11020212222), we get a palindrome (33241414233).

The spelling of 22221202011 in words is "twenty-two billion, two hundred twenty-one million, two hundred two thousand, eleven".