12012002101 has 32 divisors (see below), whose sum is σ = 13941849600. Its totient is φ = 10245312000.

The previous prime is 12012002099. The next prime is 12012002269. The reversal of 12012002101 is 10120021021.

It is not a de Polignac number, because 12012002101 - 2¹ = 12012002099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012002501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3542715 + ... + 3546103.

It is an arithmetic number, because the mean of its divisors is an integer number (435682800).

Almost surely, 2^12012002101 is an apocalyptic number.

12012002101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12012002101 is a deficient number, since it is larger than the sum of its proper divisors (1929847499).

12012002101 is a wasteful number, since it uses less digits than its factorization.

12012002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12012002101 its reverse (10120021021), we get a palindrome (22132023122).

It can be divided in two parts, 1 and 2012002101, that added together give a palindrome (2012002102).

The spelling of 12012002101 in words is "twelve billion, twelve million, two thousand, one hundred one".