20121022022011 has 2 divisors, whose sum is σ = 20121022022012. Its totient is φ = 20121022022010.

The previous prime is 20121022021987. The next prime is 20121022022039. The reversal of 20121022022011 is 11022022012102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20121022022011 - 2²⁵ = 20120988467579 is a prime.

It is not a weakly prime, because it can be changed into another prime (20121022022071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060511011005 + 10060511011006.

It is an arithmetic number, because the mean of its divisors is an integer number (10060511011006).

Almost surely, 2^{20121022022011} is an apocalyptic number.

20121022022011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121022022011 is an equidigital number, since it uses as much as digits as its factorization.

20121022022011 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20121022022011 its reverse (11022022012102), we get a palindrome (31143044034113).

Subtracting from 20121022022011 its reverse (11022022012102), we obtain a palindrome (9099000009909).

The spelling of 20121022022011 in words is "twenty trillion, one hundred twenty-one billion, twenty-two million, twenty-two thousand, eleven".