340212221434 has 4 divisors (see below), whose sum is σ = 510318332154. Its totient is φ = 170106110716.

The previous prime is 340212221417. The next prime is 340212221449. The reversal of 340212221434 is 434122212043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434122212043 = 13 ⋅33394016311.

It can be written as a sum of positive squares in only one way, i.e., 279719343225 + 60492878209 = 528885^2 + 245953^2 .

It is a super-2 number, since 2×340212221434² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85053055357 + ... + 85053055360.

Almost surely, 2^340212221434 is an apocalyptic number.

340212221434 is a deficient number, since it is larger than the sum of its proper divisors (170106110720).

340212221434 is a wasteful number, since it uses less digits than its factorization.

340212221434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170106110719.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 340212221434 its reverse (434122212043), we get a palindrome (774334433477).

The spelling of 340212221434 in words is "three hundred forty billion, two hundred twelve million, two hundred twenty-one thousand, four hundred thirty-four".