102012200001 has 24 divisors (see below), whose sum is σ = 155015640000. Its totient is φ = 64550082912.

The previous prime is 102012199957. The next prime is 102012200011. The reversal of 102012200001 is 100002210201.

It is not a de Polignac number, because 102012200001 - 2¹⁴ = 102012183617 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102012200011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3296901 + ... + 3327698.

It is an arithmetic number, because the mean of its divisors is an integer number (6458985000).

Almost surely, 2^102012200001 is an apocalyptic number.

It is an amenable number.

102012200001 is a deficient number, since it is larger than the sum of its proper divisors (53003439999).

102012200001 is a wasteful number, since it uses less digits than its factorization.

102012200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6624693 (or 6624690 counting only the distinct ones).

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

Adding to 102012200001 its reverse (100002210201), we get a palindrome (202014410202).

The spelling of 102012200001 in words is "one hundred two billion, twelve million, two hundred thousand, one".