2112211150666 has 8 divisors (see below), whose sum is σ = 3220256344644. Its totient is φ = 1038792369120.

The previous prime is 2112211150663. The next prime is 2112211150681. The reversal of 2112211150666 is 6660511122112.

It can be written as a sum of positive squares in 2 ways, for example, as 1741304572225 + 370906578441 = 1319585^2 + 609021^2 .

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

It is a super-2 number, since 2×2112211150666² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112211150663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8656602955 + ... + 8656603198.

Almost surely, 2^{2112211150666} is an apocalyptic number.

2112211150666 is a deficient number, since it is larger than the sum of its proper divisors (1108045193978).

2112211150666 is a wasteful number, since it uses less digits than its factorization.

2112211150666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17313206216.

The product of its (nonzero) digits is 8640, while the sum is 34.

Adding to 2112211150666 its reverse (6660511122112), we get a palindrome (8772722272778).

The spelling of 2112211150666 in words is "two trillion, one hundred twelve billion, two hundred eleven million, one hundred fifty thousand, six hundred sixty-six".