2122121012020 has 48 divisors (see below), whose sum is σ = 4693579107840. Its totient is φ = 803730784896.

The previous prime is 2122121012003. The next prime is 2122121012059. The reversal of 2122121012020 is 202101212212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2122121011985 and 2122121012003.

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 in 15 ways as a sum of consecutive naturals, for example, 838947 + ... + 2224426.

It is an arithmetic number, because the mean of its divisors is an integer number (97782898080).

Almost surely, 2^{2122121012020} is an apocalyptic number.

2122121012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122121012020 is an abundant number, since it is smaller than the sum of its proper divisors (2571458095820).

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

2122121012020 is a wasteful number, since it uses less digits than its factorization.

2122121012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065224 (or 3065222 counting only the distinct ones).

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

Adding to 2122121012020 its reverse (202101212212), we get a palindrome (2324222224232).

The spelling of 2122121012020 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, twelve thousand, twenty".