2150105121020 has 48 divisors (see below), whose sum is σ = 4532026558080. Its totient is φ = 856845609984.

The previous prime is 2150105120983. The next prime is 2150105121067. The reversal of 2150105121020 is 201215010512.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2150105120983 and 2150105121001.

It is a congruent number.

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, 7260902 + ... + 7551218.

It is an arithmetic number, because the mean of its divisors is an integer number (94417219960).

Almost surely, 2^{2150105121020} is an apocalyptic number.

2150105121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2150105121020 is an abundant number, since it is smaller than the sum of its proper divisors (2381921437060).

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

2150105121020 is a wasteful number, since it uses less digits than its factorization.

2150105121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291702 (or 291700 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The spelling of 2150105121020 in words is "two trillion, one hundred fifty billion, one hundred five million, one hundred twenty-one thousand, twenty".