20120012022011 has 24 divisors (see below), whose sum is σ = 22814951816832. Its totient is φ = 17716764700800.

The previous prime is 20120012021981. The next prime is 20120012022023. The reversal of 20120012022011 is 11022021002102.

It is not a de Polignac number, because 20120012022011 - 2¹⁰ = 20120012020987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120012022611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9078050 + ... + 11074791.

It is an arithmetic number, because the mean of its divisors is an integer number (950622992368).

Almost surely, 2^{20120012022011} is an apocalyptic number.

20120012022011 is a deficient number, since it is larger than the sum of its proper divisors (2694939794821).

20120012022011 is a wasteful number, since it uses less digits than its factorization.

20120012022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20153123 (or 20153112 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20120012022011 its reverse (11022021002102), we get a palindrome (31142033024113).

The spelling of 20120012022011 in words is "twenty trillion, one hundred twenty billion, twelve million, twenty-two thousand, eleven".