2021502012 has 24 divisors (see below), whose sum is σ = 4717974912. Its totient is φ = 673671600.

The previous prime is 2021501987. The next prime is 2021502029. The reversal of 2021502012 is 2102051202.

It is a junction number, because it is equal to n+sod(n) for n = 2021501982 and 2021502000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38337 + ... + 74247.

It is an arithmetic number, because the mean of its divisors is an integer number (196582288).

Almost surely, 2^2021502012 is an apocalyptic number.

It is an amenable number.

2021502012 is an abundant number, since it is smaller than the sum of its proper divisors (2696472900).

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

2021502012 is a wasteful number, since it uses less digits than its factorization.

2021502012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40609 (or 40607 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2021502012 is about 44961.1166676274. The cubic root of 2021502012 is about 1264.4201046765.

Adding to 2021502012 its reverse (2102051202), we get a palindrome (4123553214).

The spelling of 2021502012 in words is "two billion, twenty-one million, five hundred two thousand, twelve".