12101011002 has 24 divisors (see below), whose sum is σ = 26578022484. Its totient is φ = 3978414144.

The previous prime is 12101010997. The next prime is 12101011003. The reversal of 12101011002 is 20011010121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11417136201 + 683874801 = 106851^2 + 26151^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12101011003) 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, 4603333 + ... + 4605960.

Almost surely, 2^12101011002 is an apocalyptic number.

12101011002 is an abundant number, since it is smaller than the sum of its proper divisors (14477011482).

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

12101011002 is a wasteful number, since it uses less digits than its factorization.

12101011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9209374 (or 9209371 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12101011002 its reverse (20011010121), we get a palindrome (32112021123).

The spelling of 12101011002 in words is "twelve billion, one hundred one million, eleven thousand, two".