1212113212002 has 168 divisors, whose sum is σ = 3424409851968. Its totient is φ = 314834279760.

The previous prime is 1212113212001. The next prime is 1212113212021. The reversal of 1212113212002 is 2002123112121.

1212113212002 is a `hidden beast` number, since 121 + 21 + 1 + 321 + 200 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1212113212001) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 744163 + ... + 1725689.

It is an arithmetic number, because the mean of its divisors is an integer number (20383391976).

Almost surely, 2^{1212113212002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212113212002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1712204925984).

1212113212002 is an abundant number, since it is smaller than the sum of its proper divisors (2212296639966).

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

1212113212002 is an equidigital number, since it uses as much as digits as its factorization.

1212113212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981576 (or 981550 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1212113212002 its reverse (2002123112121), we get a palindrome (3214236324123).

The spelling of 1212113212002 in words is "one trillion, two hundred twelve billion, one hundred thirteen million, two hundred twelve thousand, two".