20033121212 has 12 divisors (see below), whose sum is σ = 37754728536. Its totient is φ = 9246055920.

The previous prime is 20033121209. The next prime is 20033121223. The reversal of 20033121212 is 21212133002.

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, 192626114 + ... + 192626217.

It is an arithmetic number, because the mean of its divisors is an integer number (3146227378).

Almost surely, 2^20033121212 is an apocalyptic number.

It is an amenable number.

20033121212 is a deficient number, since it is larger than the sum of its proper divisors (17721607324).

20033121212 is a wasteful number, since it uses less digits than its factorization.

20033121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385252348 (or 385252346 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20033121212 its reverse (21212133002), we get a palindrome (41245254214).

The spelling of 20033121212 in words is "twenty billion, thirty-three million, one hundred twenty-one thousand, two hundred twelve".