11211433012421 has 8 divisors (see below), whose sum is σ = 11314272003840. Its totient is φ = 11108991851568.

The previous prime is 11211433012397. The next prime is 11211433012447. The reversal of 11211433012421 is 12421033411211.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211433012421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211433011421) 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, 99401021 + ... + 99513746.

It is an arithmetic number, because the mean of its divisors is an integer number (1414284000480).

Almost surely, 2^{11211433012421} is an apocalyptic number.

It is an amenable number.

11211433012421 is a deficient number, since it is larger than the sum of its proper divisors (102838991419).

11211433012421 is a wasteful number, since it uses less digits than its factorization.

11211433012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198915283.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 11211433012421 its reverse (12421033411211), we get a palindrome (23632466423632).

The spelling of 11211433012421 in words is "eleven trillion, two hundred eleven billion, four hundred thirty-three million, twelve thousand, four hundred twenty-one".