2021246180 has 12 divisors (see below), whose sum is σ = 4244617020. Its totient is φ = 808498464.

The previous prime is 2021246111. The next prime is 2021246189. The reversal of 2021246180 is 816421202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1306967104 + 714279076 = 36152^2 + 26726^2 .

It is a super-2 number, since 2×2021246180² = 8170872240329184800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021246189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50531135 + ... + 50531174.

It is an arithmetic number, because the mean of its divisors is an integer number (353718085).

Almost surely, 2^2021246180 is an apocalyptic number.

2021246180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021246180 is an abundant number, since it is smaller than the sum of its proper divisors (2223370840).

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

2021246180 is a wasteful number, since it uses less digits than its factorization.

2021246180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101062318 (or 101062316 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2021246180 is about 44958.2715415084. The cubic root of 2021246180 is about 1264.3667626946.

Adding to 2021246180 its reverse (816421202), we get a palindrome (2837667382).

The spelling of 2021246180 in words is "two billion, twenty-one million, two hundred forty-six thousand, one hundred eighty".