2122121200111 has 8 divisors (see below), whose sum is σ = 2318906160000. Its totient is φ = 1925980382040.

The previous prime is 2122121200099. The next prime is 2122121200117. The reversal of 2122121200111 is 1110021212212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2122121200111 - 2³³ = 2113531265519 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 (2122121200117) 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 7 ways as a sum of consecutive naturals, for example, 161028561 + ... + 161041738.

It is an arithmetic number, because the mean of its divisors is an integer number (289863270000).

Almost surely, 2^{2122121200111} is an apocalyptic number.

2122121200111 is a deficient number, since it is larger than the sum of its proper divisors (196784959889).

2122121200111 is a wasteful number, since it uses less digits than its factorization.

2122121200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322070909.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2122121200111 its reverse (1110021212212), we get a palindrome (3232142412323).

It can be divided in two parts, 2122121 and 200111, that added together give a palindrome (2322232).

The spelling of 2122121200111 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred thousand, one hundred eleven".