2112122122102 has 4 divisors (see below), whose sum is σ = 3168183183156. Its totient is φ = 1056061061050.

The previous prime is 2112122122067. The next prime is 2112122122127. The reversal of 2112122122102 is 2012212212112.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2112122122102² (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 2112122122102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528030530524 + ... + 528030530527.

It is an arithmetic number, because the mean of its divisors is an integer number (792045795789).

Almost surely, 2^{2112122122102} is an apocalyptic number.

2112122122102 is a deficient number, since it is larger than the sum of its proper divisors (1056061061054).

2112122122102 is a wasteful number, since it uses less digits than its factorization.

2112122122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056061061053.

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

Adding to 2112122122102 its reverse (2012212212112), we get a palindrome (4124334334214).

The spelling of 2112122122102 in words is "two trillion, one hundred twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred two".