2150020020 has 24 divisors (see below), whose sum is σ = 6020056224. Its totient is φ = 573338656.

The previous prime is 2150020007. The next prime is 2150020021. The reversal of 2150020020 is 200200512.

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

It is a junction number, because it is equal to n+sod(n) for n = 2150019978 and 2150020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150020021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17916774 + ... + 17916893.

It is an arithmetic number, because the mean of its divisors is an integer number (250835676).

Almost surely, 2^2150020020 is an apocalyptic number.

2150020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2150020020 is an abundant number, since it is smaller than the sum of its proper divisors (3870036204).

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

2150020020 is a wasteful number, since it uses less digits than its factorization.

2150020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35833679 (or 35833677 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2150020020 is about 46368.3083581879. The cubic root of 2150020020 is about 1290.6668867191. Note that the first 3 decimals are identical.

Adding to 2150020020 its reverse (200200512), we get a palindrome (2350220532).

The spelling of 2150020020 in words is "two billion, one hundred fifty million, twenty thousand, twenty".