243212412021422 has 4 divisors (see below), whose sum is σ = 364818618032136. Its totient is φ = 121606206010710.

The previous prime is 243212412021347. The next prime is 243212412021437. The reversal of 243212412021422 is 224120214212342.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×243212412021422³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60803103005354 + ... + 60803103005357.

It is an arithmetic number, because the mean of its divisors is an integer number (91204654508034).

Almost surely, 2^{243212412021422} is an apocalyptic number.

243212412021422 is a deficient number, since it is larger than the sum of its proper divisors (121606206010714).

243212412021422 is a wasteful number, since it uses less digits than its factorization.

243212412021422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121606206010713.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 243212412021422 its reverse (224120214212342), we get a palindrome (467332626233764).

The spelling of 243212412021422 in words is "two hundred forty-three trillion, two hundred twelve billion, four hundred twelve million, twenty-one thousand, four hundred twenty-two".