2150105121021 has 96 divisors (see below), whose sum is σ = 3429904642560. Its totient is φ = 1187535148800.

The previous prime is 2150105120983. The next prime is 2150105121067. The reversal of 2150105121021 is 1201215010512.

It is not a de Polignac number, because 2150105121021 - 2¹⁰ = 2150105119997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150105121121) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 143918170 + ... + 143933108.

It is an arithmetic number, because the mean of its divisors is an integer number (35728173360).

Almost surely, 2^{2150105121021} is an apocalyptic number.

It is an amenable number.

2150105121021 is a deficient number, since it is larger than the sum of its proper divisors (1279799521539).

2150105121021 is a wasteful number, since it uses less digits than its factorization.

2150105121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15307 (or 15294 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 21.

The spelling of 2150105121021 in words is "two trillion, one hundred fifty billion, one hundred five million, one hundred twenty-one thousand, twenty-one".