12011121201210 has 64 divisors (see below), whose sum is σ = 29626956576000. Its totient is φ = 3114171021312.

The previous prime is 12011121201197. The next prime is 12011121201217. The reversal of 12011121201210 is 1210212111021.

It is a happy number.

12011121201210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12011121201210.

It is not an unprimeable number, because it can be changed into a prime (12011121201217) 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, 2314455 + ... + 5420234.

It is an arithmetic number, because the mean of its divisors is an integer number (462921196500).

Almost surely, 2^{12011121201210} is an apocalyptic number.

12011121201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011121201210 is an abundant number, since it is smaller than the sum of its proper divisors (17615835374790).

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

12011121201210 is a wasteful number, since it uses less digits than its factorization.

12011121201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7736135.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12011121201210 its reverse (1210212111021), we get a palindrome (13221333312231).

The spelling of 12011121201210 in words is "twelve trillion, eleven billion, one hundred twenty-one million, two hundred one thousand, two hundred ten".