20122101002011 has 4 divisors (see below), whose sum is σ = 20122112819224. Its totient is φ = 20122089184800.

The previous prime is 20122101001943. The next prime is 20122101002027. The reversal of 20122101002011 is 11020010122102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20122101002011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122101001982 and 20122101002000.

It is not an unprimeable number, because it can be changed into a prime (20122101002041) 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 in 3 ways as a sum of consecutive naturals, for example, 2814270 + ... + 6940051.

It is an arithmetic number, because the mean of its divisors is an integer number (5030528204806).

Almost surely, 2^{20122101002011} is an apocalyptic number.

20122101002011 is a deficient number, since it is larger than the sum of its proper divisors (11817213).

20122101002011 is an equidigital number, since it uses as much as digits as its factorization.

20122101002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11817212.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20122101002011 its reverse (11020010122102), we get a palindrome (31142111124113).

The spelling of 20122101002011 in words is "twenty trillion, one hundred twenty-two billion, one hundred one million, two thousand, eleven".