22021402111 has 4 divisors (see below), whose sum is σ = 22070448000. Its totient is φ = 21972356224.

The previous prime is 22021402087. The next prime is 22021402157. The reversal of 22021402111 is 11120412022.

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 22021402111 - 2¹⁷ = 22021271039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021402171) 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, 24522271 + ... + 24523168.

It is an arithmetic number, because the mean of its divisors is an integer number (5517612000).

Almost surely, 2^22021402111 is an apocalyptic number.

22021402111 is a deficient number, since it is larger than the sum of its proper divisors (49045889).

22021402111 is an equidigital number, since it uses as much as digits as its factorization.

22021402111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49045888.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22021402111 its reverse (11120412022), we get a palindrome (33141814133).

The spelling of 22021402111 in words is "twenty-two billion, twenty-one million, four hundred two thousand, one hundred eleven".