1212404204011 has 48 divisors (see below), whose sum is σ = 1658446755840. Its totient is φ = 871251232320.

The previous prime is 1212404203999. The next prime is 1212404204027. The reversal of 1212404204011 is 1104024042121.

It is not a de Polignac number, because 1212404204011 - 2¹⁵ = 1212404171243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212404204611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7537020 + ... + 7696198.

It is an arithmetic number, because the mean of its divisors is an integer number (34550974080).

Almost surely, 2^{1212404204011} is an apocalyptic number.

1212404204011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212404204011 is a deficient number, since it is larger than the sum of its proper divisors (446042551829).

1212404204011 is a wasteful number, since it uses less digits than its factorization.

1212404204011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160304 (or 160297 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 1212404204011 its reverse (1104024042121), we get a palindrome (2316428246132).

The spelling of 1212404204011 in words is "one trillion, two hundred twelve billion, four hundred four million, two hundred four thousand, eleven".