21022022111011 has 16 divisors (see below), whose sum is σ = 22419230400000. Its totient is φ = 19654132713696.

The previous prime is 21022022110993. The next prime is 21022022111023. The reversal of 21022022111011 is 11011122022012.

It is a cyclic number.

It is not a de Polignac number, because 21022022111011 - 2⁹ = 21022022110499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022022111081) 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, 185596 + ... + 6486793.

It is an arithmetic number, because the mean of its divisors is an integer number (1401201900000).

Almost surely, 2^{21022022111011} is an apocalyptic number.

21022022111011 is a deficient number, since it is larger than the sum of its proper divisors (1397208288989).

21022022111011 is a wasteful number, since it uses less digits than its factorization.

21022022111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674586.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21022022111011 its reverse (11011122022012), we get a palindrome (32033144133023).

The spelling of 21022022111011 in words is "twenty-one trillion, twenty-two billion, twenty-two million, one hundred eleven thousand, eleven".