20122100222011 has 4 divisors (see below), whose sum is σ = 20233272046624. Its totient is φ = 20010928397400.

The previous prime is 20122100222009. The next prime is 20122100222027. The reversal of 20122100222011 is 11022200122102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20122100222011 - 2¹ = 20122100222009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122100222311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55585912035 + ... + 55585912396.

It is an arithmetic number, because the mean of its divisors is an integer number (5058318011656).

Almost surely, 2^{20122100222011} is an apocalyptic number.

20122100222011 is a deficient number, since it is larger than the sum of its proper divisors (111171824613).

20122100222011 is a wasteful number, since it uses less digits than its factorization.

20122100222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111171824612.

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

Adding to 20122100222011 its reverse (11022200122102), we get a palindrome (31144300344113).

Subtracting from 20122100222011 its reverse (11022200122102), we obtain a palindrome (9099900099909).

The spelling of 20122100222011 in words is "twenty trillion, one hundred twenty-two billion, one hundred million, two hundred twenty-two thousand, eleven".