102111012202 has 4 divisors (see below), whose sum is σ = 153166518306. Its totient is φ = 51055506100.

The previous prime is 102111012151. The next prime is 102111012203. The reversal of 102111012202 is 202210111201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 101244239721 + 866772481 = 318189^2 + 29441^2 .

It is not an unprimeable number, because it can be changed into a prime (102111012203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25527753049 + ... + 25527753052.

Almost surely, 2^102111012202 is an apocalyptic number.

102111012202 is a deficient number, since it is larger than the sum of its proper divisors (51055506104).

102111012202 is an equidigital number, since it uses as much as digits as its factorization.

102111012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51055506103.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102111012202 its reverse (202210111201), we get a palindrome (304321123403).

The spelling of 102111012202 in words is "one hundred two billion, one hundred eleven million, twelve thousand, two hundred two".