1221134110224 has 80 divisors (see below), whose sum is σ = 3620726508672. Its totient is φ = 347398032384.

The previous prime is 1221134110171. The next prime is 1221134110271. The reversal of 1221134110224 is 4220114311221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1221134110194 and 1221134110203.

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, 7720699 + ... + 7877274.

Almost surely, 2^{1221134110224} is an apocalyptic number.

1221134110224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1221134110224 is an abundant number, since it is smaller than the sum of its proper divisors (2399592398448).

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

1221134110224 is a wasteful number, since it uses less digits than its factorization.

1221134110224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15598224 (or 15598218 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1221134110224 its reverse (4220114311221), we get a palindrome (5441248421445).

The spelling of 1221134110224 in words is "one trillion, two hundred twenty-one billion, one hundred thirty-four million, one hundred ten thousand, two hundred twenty-four".