121436223245404 has 48 divisors (see below), whose sum is σ = 216858578882400. Its totient is φ = 59483912564736.

The previous prime is 121436223245401. The next prime is 121436223245413. The reversal of 121436223245404 is 404542322634121.

It is a super-2 number, since 2×121436223245404² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121436223245401) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 137601502 + ... + 138481210.

It is an arithmetic number, because the mean of its divisors is an integer number (4517887060050).

Almost surely, 2^{121436223245404} is an apocalyptic number.

It is an amenable number.

121436223245404 is a deficient number, since it is larger than the sum of its proper divisors (95422355636996).

121436223245404 is a wasteful number, since it uses less digits than its factorization.

121436223245404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881782 (or 881780 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

Adding to 121436223245404 its reverse (404542322634121), we get a palindrome (525978545879525).

The spelling of 121436223245404 in words is "one hundred twenty-one trillion, four hundred thirty-six billion, two hundred twenty-three million, two hundred forty-five thousand, four hundred four".