1212011121404 has 12 divisors (see below), whose sum is σ = 2121080268384. Its totient is φ = 605988187584.

The previous prime is 1212011121371. The next prime is 1212011121427. The reversal of 1212011121404 is 4041211102121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4185677 + ... + 4465860.

It is an arithmetic number, because the mean of its divisors is an integer number (176756689032).

Almost surely, 2^{1212011121404} is an apocalyptic number.

It is an amenable number.

1212011121404 is a deficient number, since it is larger than the sum of its proper divisors (909069146980).

1212011121404 is a wasteful number, since it uses less digits than its factorization.

1212011121404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8686564 (or 8686562 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 1212011121404 its reverse (4041211102121), we get a palindrome (5253222223525).

The spelling of 1212011121404 in words is "one trillion, two hundred twelve billion, eleven million, one hundred twenty-one thousand, four hundred four".