21022112012011 has 8 divisors (see below), whose sum is σ = 22968990355248. Its totient is φ = 19081196544000.

The previous prime is 21022112012009. The next prime is 21022112012021. The reversal of 21022112012011 is 11021021122012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21022112012011 - 2¹ = 21022112012009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022112012021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490711430 + ... + 1490725531.

It is an arithmetic number, because the mean of its divisors is an integer number (2871123794406).

Almost surely, 2^{21022112012011} is an apocalyptic number.

21022112012011 is a deficient number, since it is larger than the sum of its proper divisors (1946878343237).

21022112012011 is a wasteful number, since it uses less digits than its factorization.

21022112012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981437613.

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

Adding to 21022112012011 its reverse (11021021122012), we get a palindrome (32043133134023).

The spelling of 21022112012011 in words is "twenty-one trillion, twenty-two billion, one hundred twelve million, twelve thousand, eleven".