1202000000 has 112 divisors (see below), whose sum is σ = 2998203810. Its totient is φ = 480000000.

The previous prime is 1201999973. The next prime is 1202000017. The reversal of 1202000000 is 2021.

It can be written as a sum of positive squares in 7 ways, for example, as 418447936 + 783552064 = 20456^2 + 27992^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1999700 + ... + 2000300.

Almost surely, 2^1202000000 is an apocalyptic number.

1202000000 is a gapful number since it is divisible by the number (10) 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 1202000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499101905).

1202000000 is an abundant number, since it is smaller than the sum of its proper divisors (1796203810).

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

1202000000 is an frugal number, since it uses more digits than its factorization.

1202000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 1202000000 is about 34669.8716467194. The cubic root of 1202000000 is about 1063.2486073767.

Adding to 1202000000 its reverse (2021), we get a palindrome (1202002021).

The spelling of 1202000000 in words is "one billion, two hundred two million", and thus it is an aban number.