2101210121120 has 96 divisors (see below), whose sum is σ = 5733944064576. Its totient is φ = 719130726400.

The previous prime is 2101210121117. The next prime is 2101210121141. The reversal of 2101210121120 is 211210121012.

It is a junction number, because it is equal to n+sod(n) for n = 2101210121095 and 2101210121104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35083886 + ... + 35143725.

It is an arithmetic number, because the mean of its divisors is an integer number (59728584006).

Almost surely, 2^{2101210121120} is an apocalyptic number.

2101210121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101210121120 is an abundant number, since it is smaller than the sum of its proper divisors (3632733943456).

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

2101210121120 is a wasteful number, since it uses less digits than its factorization.

2101210121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70227654 (or 70227646 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2101210121120 its reverse (211210121012), we get a palindrome (2312420242132).

The spelling of 2101210121120 in words is "two trillion, one hundred one billion, two hundred ten million, one hundred twenty-one thousand, one hundred twenty".