102102111010202 has 4 divisors (see below), whose sum is σ = 153153166515306. Its totient is φ = 51051055505100.

The previous prime is 102102111010189. The next prime is 102102111010253. The reversal of 102102111010202 is 202010111201201.

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., 98747128991281 + 3354982018921 = 9937159^2 + 1831661^2 .

It is a super-2 number, since 2×102102111010202² (a number of 29 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 25525527752549 + ... + 25525527752552.

Almost surely, 2^{102102111010202} is an apocalyptic number.

102102111010202 is a deficient number, since it is larger than the sum of its proper divisors (51051055505104).

102102111010202 is an equidigital number, since it uses as much as digits as its factorization.

102102111010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51051055505103.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102102111010202 its reverse (202010111201201), we get a palindrome (304112222211403).

The spelling of 102102111010202 in words is "one hundred two trillion, one hundred two billion, one hundred eleven million, ten thousand, two hundred two".