1212113301200 has 30 divisors (see below), whose sum is σ = 2912102207094. Its totient is φ = 484845320320.

The previous prime is 1212113301197. The next prime is 1212113301247. The reversal of 1212113301200 is 21033112121.

It can be written as a sum of positive squares in 3 ways, for example, as 108462200896 + 1103651100304 = 329336^2 + 1050548^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1515141227 + ... + 1515142026.

Almost surely, 2^{1212113301200} is an apocalyptic number.

1212113301200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212113301200 is an abundant number, since it is smaller than the sum of its proper divisors (1699988905894).

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

1212113301200 is a wasteful number, since it uses less digits than its factorization.

1212113301200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030283271 (or 3030283260 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1212113301200 its reverse (21033112121), we get a palindrome (1233146413321).

The spelling of 1212113301200 in words is "one trillion, two hundred twelve billion, one hundred thirteen million, three hundred one thousand, two hundred".