12002101020 has 192 divisors, whose sum is σ = 45956951040. Its totient is φ = 2532301056.

The previous prime is 12002101003. The next prime is 12002101057. The reversal of 12002101020 is 2010120021.

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

It is a junction number, because it is equal to n+sod(n) for n = 12002100993 and 12002101011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72982 + ... + 171261.

It is an arithmetic number, because the mean of its divisors is an integer number (239359120).

Almost surely, 2^12002101020 is an apocalyptic number.

12002101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002101020 is an abundant number, since it is smaller than the sum of its proper divisors (33954850020).

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

12002101020 is a wasteful number, since it uses less digits than its factorization.

12002101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244281 (or 244273 counting only the distinct ones).

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

Adding to 12002101020 its reverse (2010120021), we get a palindrome (14012221041).

The spelling of 12002101020 in words is "twelve billion, two million, one hundred one thousand, twenty".