102120120120202 has 4 divisors (see below), whose sum is σ = 153180180180306. Its totient is φ = 51060060060100.

The previous prime is 102120120120169. The next prime is 102120120120269. The reversal of 102120120120202 is 202021021021201.

It is a happy number.

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., 71309394471121 + 30810725649081 = 8444489^2 + 5550741^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530030030049 + ... + 25530030030052.

Almost surely, 2^{102120120120202} is an apocalyptic number.

102120120120202 is a deficient number, since it is larger than the sum of its proper divisors (51060060060104).

102120120120202 is an equidigital number, since it uses as much as digits as its factorization.

102120120120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51060060060103.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102120120120202 its reverse (202021021021201), we get a palindrome (304141141141403).

Subtracting 102120120120202 from its reverse (202021021021201), we obtain a palindrome (99900900900999).

The spelling of 102120120120202 in words is "one hundred two trillion, one hundred twenty billion, one hundred twenty million, one hundred twenty thousand, two hundred two".