1012200000100 has 18 divisors (see below), whose sum is σ = 2196474000434. Its totient is φ = 404880000000.

The previous prime is 1012200000089. The next prime is 1012200000103. The reversal of 1012200000100 is 10000022101.

It can be written as a sum of positive squares in 3 ways, for example, as 186271654464 + 825928345636 = 431592^2 + 908806^2 .

It is not an unprimeable number, because it can be changed into a prime (1012200000103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5060999901 + ... + 5061000100.

Almost surely, 2^{1012200000100} is an apocalyptic number.

1012200000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012200000100 is an abundant number, since it is smaller than the sum of its proper divisors (1184274000334).

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

1012200000100 is a wasteful number, since it uses less digits than its factorization.

1012200000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122000015 (or 10122000008 counting only the distinct ones).

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

Adding to 1012200000100 its reverse (10000022101), we get a palindrome (1022200022201).

The spelling of 1012200000100 in words is "one trillion, twelve billion, two hundred million, one hundred", and thus it is an aban number.