22021210010111 has 32 divisors (see below), whose sum is σ = 24163144051200. Its totient is φ = 19944615588480.

The previous prime is 22021210010101. The next prime is 22021210010123. The reversal of 22021210010111 is 11101001212022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021210010111 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 (22021210010101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1561005920 + ... + 1561020026.

It is an arithmetic number, because the mean of its divisors is an integer number (755098251600).

Almost surely, 2^{22021210010111} is an apocalyptic number.

22021210010111 is a deficient number, since it is larger than the sum of its proper divisors (2141934041089).

22021210010111 is a wasteful number, since it uses less digits than its factorization.

22021210010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17919.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22021210010111 its reverse (11101001212022), we get a palindrome (33122211222133).

The spelling of 22021210010111 in words is "twenty-two trillion, twenty-one billion, two hundred ten million, ten thousand, one hundred eleven".