102100019202 has 12 divisors (see below), whose sum is σ = 221216708310. Its totient is φ = 34033339728.

The previous prime is 102100019201. The next prime is 102100019207. The reversal of 102100019202 is 202910001201.

It can be written as a sum of positive squares in only one way, i.e., 78365843721 + 23734175481 = 279939^2 + 154059^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5672223289 = 102100019202 / (1 + 0 + 2 + 1 + 0 + 0 + 0 + 1 + 9 + 2 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (102100019201) 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, 2836111627 + ... + 2836111662.

Almost surely, 2^102100019202 is an apocalyptic number.

102100019202 is an abundant number, since it is smaller than the sum of its proper divisors (119116689108).

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

102100019202 is a wasteful number, since it uses less digits than its factorization.

102100019202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5672223297 (or 5672223294 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 102100019202 in words is "one hundred two billion, one hundred million, nineteen thousand, two hundred two".