1212300321111 has 40 divisors (see below), whose sum is σ = 1987020432144. Its totient is φ = 730480394880.

The previous prime is 1212300321107. The next prime is 1212300321119. The reversal of 1212300321111 is 1111230032121.

1212300321111 is a `hidden beast` number, since 1 + 2 + 1 + 230 + 0 + 321 + 111 = 666.

It is not a de Polignac number, because 1212300321111 - 2² = 1212300321107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212300321119) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3778246 + ... + 4086531.

Almost surely, 2^{1212300321111} is an apocalyptic number.

1212300321111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212300321111 is a deficient number, since it is larger than the sum of its proper divisors (774720111033).

1212300321111 is a wasteful number, since it uses less digits than its factorization.

1212300321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7864973 (or 7864964 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1212300321111 its reverse (1111230032121), we get a palindrome (2323530353232).

The spelling of 1212300321111 in words is "one trillion, two hundred twelve billion, three hundred million, three hundred twenty-one thousand, one hundred eleven".