1212012301212 has 72 divisors (see below), whose sum is σ = 3172918039200. Its totient is φ = 389632860288.

The previous prime is 1212012301187. The next prime is 1212012301249. The reversal of 1212012301212 is 2121032102121.

1212012301212 is a `hidden beast` number, since 1 + 21 + 201 + 230 + 1 + 212 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271614 + ... + 1580442.

It is an arithmetic number, because the mean of its divisors is an integer number (44068306100).

Almost surely, 2^{1212012301212} is an apocalyptic number.

1212012301212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212012301212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1586459019600).

1212012301212 is an abundant number, since it is smaller than the sum of its proper divisors (1960905737988).

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

1212012301212 is a wasteful number, since it uses less digits than its factorization.

1212012301212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309755 (or 1309750 counting only the distinct ones).

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

Adding to 1212012301212 its reverse (2121032102121), we get a palindrome (3333044403333).

The spelling of 1212012301212 in words is "one trillion, two hundred twelve billion, twelve million, three hundred one thousand, two hundred twelve".