21011022322111 has 16 divisors (see below), whose sum is σ = 22050717087168. Its totient is φ = 19982154931200.

The previous prime is 21011022322099. The next prime is 21011022322139. The reversal of 21011022322111 is 11122322011012.

It is a cyclic number.

It is not a de Polignac number, because 21011022322111 - 2⁵ = 21011022322079 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 (21011022392111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603270 + ... + 6510451.

It is an arithmetic number, because the mean of its divisors is an integer number (1378169817948).

Almost surely, 2^{21011022322111} is an apocalyptic number.

21011022322111 is a deficient number, since it is larger than the sum of its proper divisors (1039694765057).

21011022322111 is a wasteful number, since it uses less digits than its factorization.

21011022322111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114482.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 21011022322111 its reverse (11122322011012), we get a palindrome (32133344333123).

The spelling of 21011022322111 in words is "twenty-one trillion, eleven billion, twenty-two million, three hundred twenty-two thousand, one hundred eleven".