1121212024021 has 8 divisors (see below), whose sum is σ = 1180428876000. Its totient is φ = 1062015741360.

The previous prime is 1121212024003. The next prime is 1121212024057. The reversal of 1121212024021 is 1204202121211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121212024021 - 2⁹ = 1121212023509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121212024021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121212024001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5030371 + ... + 5248528.

It is an arithmetic number, because the mean of its divisors is an integer number (147553609500).

Almost surely, 2^{1121212024021} is an apocalyptic number.

It is an amenable number.

1121212024021 is a deficient number, since it is larger than the sum of its proper divisors (59216851979).

1121212024021 is a wasteful number, since it uses less digits than its factorization.

1121212024021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10284659.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1121212024021 its reverse (1204202121211), we get a palindrome (2325414145232).

The spelling of 1121212024021 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, twenty-four thousand, twenty-one".