2122120121020 has 12 divisors (see below), whose sum is σ = 4456452254184. Its totient is φ = 848848048400.

The previous prime is 2122120120987. The next prime is 2122120121021. The reversal of 2122120121020 is 201210212212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2122120120985 and 2122120121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122120121021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53053003006 + ... + 53053003045.

It is an arithmetic number, because the mean of its divisors is an integer number (371371021182).

Almost surely, 2^{2122120121020} is an apocalyptic number.

2122120121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122120121020 is an abundant number, since it is smaller than the sum of its proper divisors (2334332133164).

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

2122120121020 is a wasteful number, since it uses less digits than its factorization.

2122120121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106106006060 (or 106106006058 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2122120121020 its reverse (201210212212), we get a palindrome (2323330333232).

The spelling of 2122120121020 in words is "two trillion, one hundred twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, twenty".