2021125052 has 24 divisors (see below), whose sum is σ = 3567666480. Its totient is φ = 1001813760.

The previous prime is 2021125049. The next prime is 2021125061. The reversal of 2021125052 is 2505211202.

It is a happy number.

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, 440852 + ... + 445412.

It is an arithmetic number, because the mean of its divisors is an integer number (148652770).

Almost surely, 2^2021125052 is an apocalyptic number.

It is an amenable number.

2021125052 is a deficient number, since it is larger than the sum of its proper divisors (1546541428).

2021125052 is a wasteful number, since it uses less digits than its factorization.

2021125052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5501 (or 5499 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2021125052 is about 44956.9244054795. The cubic root of 2021125052 is about 1264.3415054584.

Adding to 2021125052 its reverse (2505211202), we get a palindrome (4526336254).

The spelling of 2021125052 in words is "two billion, twenty-one million, one hundred twenty-five thousand, fifty-two".