2122121122102 has 4 divisors (see below), whose sum is σ = 3183181683156. Its totient is φ = 1061060561050.

The previous prime is 2122121122073. The next prime is 2122121122111. The reversal of 2122121122102 is 2012211212212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2122121122102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530530280524 + ... + 530530280527.

It is an arithmetic number, because the mean of its divisors is an integer number (795795420789).

Almost surely, 2^{2122121122102} is an apocalyptic number.

2122121122102 is a deficient number, since it is larger than the sum of its proper divisors (1061060561054).

2122121122102 is a wasteful number, since it uses less digits than its factorization.

2122121122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061060561053.

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

Adding to 2122121122102 its reverse (2012211212212), we get a palindrome (4134332334314).

The spelling of 2122121122102 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred two".