2021412500 has 144 divisors (see below), whose sum is σ = 4724697600. Its totient is φ = 755040000.

The previous prime is 2021412479. The next prime is 2021412509. The reversal of 2021412500 is 52141202.

It is a super-2 number, since 2×2021412500² = 8172216990312500000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021412509) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22712456 + ... + 22712544.

It is an arithmetic number, because the mean of its divisors is an integer number (32810400).

Almost surely, 2^2021412500 is an apocalyptic number.

2021412500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021412500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2362348800).

2021412500 is an abundant number, since it is smaller than the sum of its proper divisors (2703285100).

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

2021412500 is an equidigital number, since it uses as much as digits as its factorization.

2021412500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2021412500 is about 44960.1212186978. The cubic root of 2021412500 is about 1264.4014415830.

Adding to 2021412500 its reverse (52141202), we get a palindrome (2073553702).

The spelling of 2021412500 in words is "two billion, twenty-one million, four hundred twelve thousand, five hundred".