2121111102106 has 16 divisors (see below), whose sum is σ = 3192736896000. Its totient is φ = 1056870164448.

The previous prime is 2121111102013. The next prime is 2121111102107. The reversal of 2121111102106 is 6012011111212.

It is a super-2 number, since 2×2121111102106² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121111102107) 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, 268506 + ... + 2077093.

It is an arithmetic number, because the mean of its divisors is an integer number (199546056000).

Almost surely, 2^{2121111102106} is an apocalyptic number.

2121111102106 is a deficient number, since it is larger than the sum of its proper divisors (1071625793894).

2121111102106 is a wasteful number, since it uses less digits than its factorization.

2121111102106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347173.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 2121111102106 its reverse (6012011111212), we get a palindrome (8133122213318).

The spelling of 2121111102106 in words is "two trillion, one hundred twenty-one billion, one hundred eleven million, one hundred two thousand, one hundred six".