1200120000102 has 24 divisors (see below), whose sum is σ = 2615830425936. Its totient is φ = 397644549936.

The previous prime is 1200120000083. The next prime is 1200120000119. The reversal of 1200120000102 is 2010000210021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199617753 + ... + 199623764.

It is an arithmetic number, because the mean of its divisors is an integer number (108992934414).

Almost surely, 2^{1200120000102} is an apocalyptic number.

1200120000102 is an abundant number, since it is smaller than the sum of its proper divisors (1415710425834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200120000102 is a wasteful number, since it uses less digits than its factorization.

1200120000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399241692 (or 399241689 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1200120000102 its reverse (2010000210021), we get a palindrome (3210120210123).

The spelling of 1200120000102 in words is "one trillion, two hundred billion, one hundred twenty million, one hundred two", and thus it is an aban number.