21113044222434 has 16 divisors (see below), whose sum is σ = 42231963873888. Its totient is φ = 7036702169312.

The previous prime is 21113044222427. The next prime is 21113044222483. The reversal of 21113044222434 is 43422244031112.

It is a junction number, because it is equal to n+sod(n) for n = 21113044222395 and 21113044222404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244762827 + ... + 244849070.

It is an arithmetic number, because the mean of its divisors is an integer number (2639497742118).

Almost surely, 2^{21113044222434} is an apocalyptic number.

21113044222434 is an abundant number, since it is smaller than the sum of its proper divisors (21118919651454).

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

21113044222434 is a wasteful number, since it uses less digits than its factorization.

21113044222434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489619089.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 21113044222434 its reverse (43422244031112), we get a palindrome (64535288253546).

The spelling of 21113044222434 in words is "twenty-one trillion, one hundred thirteen billion, forty-four million, two hundred twenty-two thousand, four hundred thirty-four".