1202820000 has 120 divisors (see below), whose sum is σ = 3945686976. Its totient is φ = 320736000.

The previous prime is 1202819999. The next prime is 1202820011. The reversal of 1202820000 is 282021.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49977 + ... + 70023.

Almost surely, 2^1202820000 is an apocalyptic number.

1202820000 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 1202820000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1972843488).

1202820000 is an abundant number, since it is smaller than the sum of its proper divisors (2742866976).

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

1202820000 is an equidigital number, since it uses as much as digits as its factorization.

1202820000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20080 (or 20057 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1202820000 is about 34681.6954602857. The cubic root of 1202820000 is about 1063.4903338527.

The spelling of 1202820000 in words is "one billion, two hundred two million, eight hundred twenty thousand".