10200202120 has 16 divisors (see below), whose sum is σ = 22950454860. Its totient is φ = 4080080832.

The previous prime is 10200202109. The next prime is 10200202139. The reversal of 10200202120 is 2120200201.

It can be written as a sum of positive squares in 2 ways, for example, as 10108693764 + 91508356 = 100542^2 + 9566^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10200202097 and 10200202106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127502487 + ... + 127502566.

Almost surely, 2^10200202120 is an apocalyptic number.

10200202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10200202120 is an abundant number, since it is smaller than the sum of its proper divisors (12750252740).

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

10200202120 is a wasteful number, since it uses less digits than its factorization.

10200202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255005064 (or 255005060 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10200202120 its reverse (2120200201), we get a palindrome (12320402321).

The spelling of 10200202120 in words is "ten billion, two hundred million, two hundred two thousand, one hundred twenty".