1200000012102 has 96 divisors (see below), whose sum is σ = 2759031580032. Its totient is φ = 375638790912.

The previous prime is 1200000012089. The next prime is 1200000012121. The reversal of 1200000012102 is 2012100000021.

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 47 ways as a sum of consecutive naturals, for example, 361117813 + ... + 361121135.

It is an arithmetic number, because the mean of its divisors is an integer number (28739912292).

Almost surely, 2^{1200000012102} is an apocalyptic number.

1200000012102 is an abundant number, since it is smaller than the sum of its proper divisors (1559031567930).

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

1200000012102 is a wasteful number, since it uses less digits than its factorization.

1200000012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5602 (or 5599 counting only the distinct ones).

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

Adding to 1200000012102 its reverse (2012100000021), we get a palindrome (3212100012123).

The spelling of 1200000012102 in words is "one trillion, two hundred billion, twelve thousand, one hundred two".