21214041230542 has 16 divisors (see below), whose sum is σ = 33610174914960. Its totient is φ = 10014460270272.

The previous prime is 21214041230533. The next prime is 21214041230579. The reversal of 21214041230542 is 24503214041212.

It is a super-2 number, since 2×21214041230542² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 952658223 + ... + 952680490.

It is an arithmetic number, because the mean of its divisors is an integer number (2100635932185).

Almost surely, 2^{21214041230542} is an apocalyptic number.

21214041230542 is a deficient number, since it is larger than the sum of its proper divisors (12396133684418).

21214041230542 is a wasteful number, since it uses less digits than its factorization.

21214041230542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905339027.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 21214041230542 its reverse (24503214041212), we get a palindrome (45717255271754).

The spelling of 21214041230542 in words is "twenty-one trillion, two hundred fourteen billion, forty-one million, two hundred thirty thousand, five hundred forty-two".