120021002102 has 4 divisors (see below), whose sum is σ = 180031503156. Its totient is φ = 60010501050.

The previous prime is 120021002039. The next prime is 120021002119. The reversal of 120021002102 is 201200120021.

It is a happy number.

120021002102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201200120021 = 15359 ⋅13099819.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30005250524 + ... + 30005250527.

It is an arithmetic number, because the mean of its divisors is an integer number (45007875789).

Almost surely, 2^120021002102 is an apocalyptic number.

120021002102 is a deficient number, since it is larger than the sum of its proper divisors (60010501054).

120021002102 is an equidigital number, since it uses as much as digits as its factorization.

120021002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60010501053.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120021002102 its reverse (201200120021), we get a palindrome (321221122123).

The spelling of 120021002102 in words is "one hundred twenty billion, twenty-one million, two thousand, one hundred two".