2112121222102 has 16 divisors (see below), whose sum is σ = 3171660043392. Its totient is φ = 1054901518720.

The previous prime is 2112121222069. The next prime is 2112121222103. The reversal of 2112121222102 is 2012221212112.

It is a super-2 number, since 2×2112121222102² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112121222102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112121222103) 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, 14222043 + ... + 14369785.

It is an arithmetic number, because the mean of its divisors is an integer number (198228752712).

Almost surely, 2^{2112121222102} is an apocalyptic number.

2112121222102 is a deficient number, since it is larger than the sum of its proper divisors (1059538821290).

2112121222102 is a wasteful number, since it uses less digits than its factorization.

2112121222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155543.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2112121222102 its reverse (2012221212112), we get a palindrome (4124342434214).

The spelling of 2112121222102 in words is "two trillion, one hundred twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred two".