2112210111101 has 8 divisors (see below), whose sum is σ = 2131888554744. Its totient is φ = 2092548971520.

The previous prime is 2112210111029. The next prime is 2112210111139. The reversal of 2112210111101 is 1011110122112.

It can be written as a sum of positive squares in 4 ways, for example, as 7682522500 + 2104527588601 = 87650^2 + 1450699^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2112210111101 - 2²⁶ = 2112143002237 is a prime.

It is a super-2 number, since 2×2112210111101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112210111301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4080686 + ... + 4569071.

It is an arithmetic number, because the mean of its divisors is an integer number (266486069343).

Almost surely, 2^{2112210111101} is an apocalyptic number.

It is an amenable number.

2112210111101 is a deficient number, since it is larger than the sum of its proper divisors (19678443643).

2112210111101 is a wasteful number, since it uses less digits than its factorization.

2112210111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8652031.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2112210111101 its reverse (1011110122112), we get a palindrome (3123320233213).

It can be divided in two parts, 211221011 and 1101, that added together give a palindrome (211222112).

The spelling of 2112210111101 in words is "two trillion, one hundred twelve billion, two hundred ten million, one hundred eleven thousand, one hundred one".