10200001212 has 72 divisors (see below), whose sum is σ = 26204418240. Its totient is φ = 3344716800.

The previous prime is 10200001183. The next prime is 10200001247. The reversal of 10200001212 is 21210000201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10200001194 and 10200001203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1048989 + ... + 1058667.

Almost surely, 2^10200001212 is an apocalyptic number.

10200001212 is a gapful number since it is divisible by the number (12) 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 10200001212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13102209120).

10200001212 is an abundant number, since it is smaller than the sum of its proper divisors (16004417028).

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

10200001212 is a wasteful number, since it uses less digits than its factorization.

10200001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10163 (or 10158 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10200001212 its reverse (21210000201), we get a palindrome (31410001413).

The spelling of 10200001212 in words is "ten billion, two hundred million, one thousand, two hundred twelve".