1020101200 has 30 divisors (see below), whose sum is σ = 2450794094. Its totient is φ = 408040320.

The previous prime is 1020101191. The next prime is 1020101213. The reversal of 1020101200 is 21010201.

It can be written as a sum of positive squares in 3 ways, for example, as 262310416 + 757790784 = 16196^2 + 27528^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1274727 + ... + 1275526.

Almost surely, 2^1020101200 is an apocalyptic number.

1020101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020101200 is an abundant number, since it is smaller than the sum of its proper divisors (1430692894).

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

1020101200 is a wasteful number, since it uses less digits than its factorization.

1020101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550271 (or 2550260 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1020101200 is about 31939.0231535030. The cubic root of 1020101200 is about 1006.6559993802.

Adding to 1020101200 its reverse (21010201), we get a palindrome (1041111401).

Subtracting from 1020101200 its reverse (21010201), we obtain a palindrome (999090999).

The spelling of 1020101200 in words is "one billion, twenty million, one hundred one thousand, two hundred".