10001012200 has 48 divisors (see below), whose sum is σ = 23285479500. Its totient is φ = 3994705920.

The previous prime is 10001012183. The next prime is 10001012233. The reversal of 10001012200 is 221010001.

It can be written as a sum of positive squares in 6 ways, for example, as 2008294596 + 7992717604 = 44814^2 + 89402^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106536 + ... + 177064.

Almost surely, 2^10001012200 is an apocalyptic number.

10001012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001012200 is an abundant number, since it is smaller than the sum of its proper divisors (13284467300).

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

10001012200 is a wasteful number, since it uses less digits than its factorization.

10001012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71254 (or 71245 counting only the distinct ones).

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

Adding to 10001012200 its reverse (221010001), we get a palindrome (10222022201).

The spelling of 10001012200 in words is "ten billion, one million, twelve thousand, two hundred".