354221045212 has 12 divisors (see below), whose sum is σ = 619904685456. Its totient is φ = 177105420800.

The previous prime is 354221045197. The next prime is 354221045237. The reversal of 354221045212 is 212540122453.

It is a happy number.

It is a super-3 number, since 3×354221045212³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117048 + ... + 1398655.

It is an arithmetic number, because the mean of its divisors is an integer number (51658723788).

Almost surely, 2^354221045212 is an apocalyptic number.

It is an amenable number.

354221045212 is a deficient number, since it is larger than the sum of its proper divisors (265683640244).

354221045212 is a wasteful number, since it uses less digits than its factorization.

354221045212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550908 (or 2550906 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 354221045212 its reverse (212540122453), we get a palindrome (566761167665).

The spelling of 354221045212 in words is "three hundred fifty-four billion, two hundred twenty-one million, forty-five thousand, two hundred twelve".