102111200102122 has 4 divisors (see below), whose sum is σ = 153166800153186. Its totient is φ = 51055600051060.

The previous prime is 102111200102057. The next prime is 102111200102137. The reversal of 102111200102122 is 221201002111201.

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., 92427284715921 + 9683915386201 = 9613911^2 + 3111899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102111200102096 and 102111200102105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25527800025529 + ... + 25527800025532.

Almost surely, 2^{102111200102122} is an apocalyptic number.

102111200102122 is a deficient number, since it is larger than the sum of its proper divisors (51055600051064).

102111200102122 is an equidigital number, since it uses as much as digits as its factorization.

102111200102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51055600051063.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102111200102122 its reverse (221201002111201), we get a palindrome (323312202213323).

The spelling of 102111200102122 in words is "one hundred two trillion, one hundred eleven billion, two hundred million, one hundred two thousand, one hundred twenty-two".