21014223042042 has 48 divisors (see below), whose sum is σ = 45667851196968. Its totient is φ = 6983684259840.

The previous prime is 21014223042023. The next prime is 21014223042053. The reversal of 21014223042042 is 24024032241012.

It is a happy number.

21014223042042 is a `hidden beast` number, since 2 + 1 + 0 + 1 + 4 + 2 + 230 + 420 + 4 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16757061544521 + 4257161497521 = 4093539^2 + 2063289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21014223041997 and 21014223042015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8838138 + ... + 10960890.

Almost surely, 2^{21014223042042} is an apocalyptic number.

21014223042042 is an abundant number, since it is smaller than the sum of its proper divisors (24653628154926).

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

21014223042042 is a wasteful number, since it uses less digits than its factorization.

21014223042042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124415 (or 2124412 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 21014223042042 its reverse (24024032241012), we get a palindrome (45038255283054).

The spelling of 21014223042042 in words is "twenty-one trillion, fourteen billion, two hundred twenty-three million, forty-two thousand, forty-two".