102110121202 has 4 divisors (see below), whose sum is σ = 153165181806. Its totient is φ = 51055060600.

The previous prime is 102110121163. The next prime is 102110121203. The reversal of 102110121202 is 202121011201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202121011201 = 41 ⋅4929780761.

It can be written as a sum of positive squares in only one way, i.e., 98137466361 + 3972654841 = 313269^2 + 63029^2 .

It is not an unprimeable number, because it can be changed into a prime (102110121203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25527530299 + ... + 25527530302.

Almost surely, 2^102110121202 is an apocalyptic number.

102110121202 is a deficient number, since it is larger than the sum of its proper divisors (51055060604).

102110121202 is an equidigital number, since it uses as much as digits as its factorization.

102110121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51055060603.

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

Adding to 102110121202 its reverse (202121011201), we get a palindrome (304231132403).

The spelling of 102110121202 in words is "one hundred two billion, one hundred ten million, one hundred twenty-one thousand, two hundred two".