2421020100 has 36 divisors (see below), whose sum is σ = 7004819024. Its totient is φ = 645605280.

The previous prime is 2421020087. The next prime is 2421020159. The reversal of 2421020100 is 10201242.

It is a super-2 number, since 2×2421020100² = 11722676649208020000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4034734 + ... + 4035333.

Almost surely, 2^2421020100 is an apocalyptic number.

2421020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421020100 is an abundant number, since it is smaller than the sum of its proper divisors (4583798924).

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

2421020100 is a wasteful number, since it uses less digits than its factorization.

2421020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8070084 (or 8070077 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2421020100 is about 49203.8626532511. The cubic root of 2421020100 is about 1342.7633071058.

Adding to 2421020100 its reverse (10201242), we get a palindrome (2431221342).

The spelling of 2421020100 in words is "two billion, four hundred twenty-one million, twenty thousand, one hundred".