542214205021 has 4 divisors (see below), whose sum is σ = 542556729792. Its totient is φ = 541871680252.

The previous prime is 542214204991. The next prime is 542214205051. The reversal of 542214205021 is 120502412245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (542214204991) and next prime (542214205051).

It is a cyclic number.

It is not a de Polignac number, because 542214205021 - 2³³ = 533624270429 is a prime.

It is a super-2 number, since 2×542214205021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542214205051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171260011 + ... + 171263176.

It is an arithmetic number, because the mean of its divisors is an integer number (135639182448).

Almost surely, 2^542214205021 is an apocalyptic number.

It is an amenable number.

542214205021 is a deficient number, since it is larger than the sum of its proper divisors (342524771).

542214205021 is a wasteful number, since it uses less digits than its factorization.

542214205021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342524770.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 542214205021 its reverse (120502412245), we get a palindrome (662716617266).

The spelling of 542214205021 in words is "five hundred forty-two billion, two hundred fourteen million, two hundred five thousand, twenty-one".