3021200100 has 144 divisors (see below), whose sum is σ = 9755000640. Its totient is φ = 802137600.

The previous prime is 3021200093. The next prime is 3021200107. The reversal of 3021200100 is 10021203.

It is a happy number.

3021200100 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3021200093) and next prime (3021200107).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (3021200107) 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, 648379 + ... + 653021.

It is an arithmetic number, because the mean of its divisors is an integer number (67743060).

Almost surely, 2^3021200100 is an apocalyptic number.

3021200100 is a gapful number since it is divisible by the number (30) 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 3021200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4877500320).

3021200100 is an abundant number, since it is smaller than the sum of its proper divisors (6733800540).

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

3021200100 is a wasteful number, since it uses less digits than its factorization.

3021200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907 (or 4894 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 3021200100 is about 54965.4445993117. Note that the first 3 decimals coincide. The cubic root of 3021200100 is about 1445.6389139888.

Adding to 3021200100 its reverse (10021203), we get a palindrome (3031221303).

The spelling of 3021200100 in words is "three billion, twenty-one million, two hundred thousand, one hundred".