2122111102122 has 48 divisors (see below), whose sum is σ = 5183485352640. Its totient is φ = 643063968360.

The previous prime is 2122111102121. The next prime is 2122111102141. The reversal of 2122111102122 is 2212011112212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2122111102095 and 2122111102104.

It is not an unprimeable number, because it can be changed into a prime (2122111102121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162383358 + ... + 162396425.

It is an arithmetic number, because the mean of its divisors is an integer number (107989278180).

Almost surely, 2^{2122111102122} is an apocalyptic number.

2122111102122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2122111102122 is an abundant number, since it is smaller than the sum of its proper divisors (3061374250518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122111102122 is a wasteful number, since it uses less digits than its factorization.

2122111102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324779816 (or 324779799 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2122111102122 its reverse (2212011112212), we get a palindrome (4334122214334).

The spelling of 2122111102122 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, one hundred two thousand, one hundred twenty-two".