20122001100111 has 16 divisors (see below), whose sum is σ = 27695266193408. Its totient is φ = 12981716359200.

The previous prime is 20122001100109. The next prime is 20122001100137. The reversal of 20122001100111 is 11100110022102.

It is not a de Polignac number, because 20122001100111 - 2¹ = 20122001100109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122001100181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3781506 + ... + 7385376.

It is an arithmetic number, because the mean of its divisors is an integer number (1730954137088).

Almost surely, 2^{20122001100111} is an apocalyptic number.

20122001100111 is a deficient number, since it is larger than the sum of its proper divisors (7573265093297).

20122001100111 is a wasteful number, since it uses less digits than its factorization.

20122001100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663942.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20122001100111 its reverse (11100110022102), we get a palindrome (31222111122213).

The spelling of 20122001100111 in words is "twenty trillion, one hundred twenty-two billion, one million, one hundred thousand, one hundred eleven".