12010020102 has 24 divisors (see below), whose sum is σ = 26071676280. Its totient is φ = 3995652960.

The previous prime is 12010020089. The next prime is 12010020103. The reversal of 12010020102 is 20102001021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010020103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 630952 + ... + 649707.

It is an arithmetic number, because the mean of its divisors is an integer number (1086319845).

Almost surely, 2^12010020102 is an apocalyptic number.

12010020102 is an abundant number, since it is smaller than the sum of its proper divisors (14061656178).

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

12010020102 is a wasteful number, since it uses less digits than its factorization.

12010020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281188 (or 1281185 counting only the distinct ones).

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

Adding to 12010020102 its reverse (20102001021), we get a palindrome (32112021123).

The spelling of 12010020102 in words is "twelve billion, ten million, twenty thousand, one hundred two".