1213033201212 has 24 divisors (see below), whose sum is σ = 3234755203456. Its totient is φ = 346580914608.

The previous prime is 1213033201201. The next prime is 1213033201249. The reversal of 1213033201212 is 2121023303121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7220435638 + ... + 7220435805.

Almost surely, 2^{1213033201212} is an apocalyptic number.

1213033201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213033201212 is an abundant number, since it is smaller than the sum of its proper divisors (2021722002244).

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

1213033201212 is a wasteful number, since it uses less digits than its factorization.

1213033201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14440871457 (or 14440871455 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1213033201212 its reverse (2121023303121), we get a palindrome (3334056504333).

The spelling of 1213033201212 in words is "one trillion, two hundred thirteen billion, thirty-three million, two hundred one thousand, two hundred twelve".