241221511231404 has 48 divisors (see below), whose sum is σ = 619092924433536. Its totient is φ = 73097427641040.

The previous prime is 241221511231397. The next prime is 241221511231427. The reversal of 241221511231404 is 404132115122142.

It is a happy number.

It is a super-2 number, since 2×241221511231404² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7551371182 + ... + 7551403125.

It is an arithmetic number, because the mean of its divisors is an integer number (12897769259032).

Almost surely, 2^{241221511231404} is an apocalyptic number.

It is an amenable number.

241221511231404 is an abundant number, since it is smaller than the sum of its proper divisors (377871413202132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

241221511231404 is a wasteful number, since it uses less digits than its factorization.

241221511231404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15102774347 (or 15102774323 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

Adding to 241221511231404 its reverse (404132115122142), we get a palindrome (645353626353546).

The spelling of 241221511231404 in words is "two hundred forty-one trillion, two hundred twenty-one billion, five hundred eleven million, two hundred thirty-one thousand, four hundred four".