33420434405212 has 24 divisors (see below), whose sum is σ = 61029367562016. Its totient is φ = 15983490059328.

The previous prime is 33420434405201. The next prime is 33420434405353. The reversal of 33420434405212 is 21250443402433.

It is a happy number.

It is a super-2 number, since 2×33420434405212² (a number of 28 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, 5461498 + ... + 9832030.

It is an arithmetic number, because the mean of its divisors is an integer number (2542890315084).

Almost surely, 2^{33420434405212} is an apocalyptic number.

It is an amenable number.

33420434405212 is a deficient number, since it is larger than the sum of its proper divisors (27608933156804).

33420434405212 is a wasteful number, since it uses less digits than its factorization.

33420434405212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453677 (or 4453675 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 33420434405212 its reverse (21250443402433), we get a palindrome (54670877807645).

The spelling of 33420434405212 in words is "thirty-three trillion, four hundred twenty billion, four hundred thirty-four million, four hundred five thousand, two hundred twelve".