20121222033 has 36 divisors (see below), whose sum is σ = 32498619504. Its totient is φ = 11897150400.

The previous prime is 20121222001. The next prime is 20121222041. The reversal of 20121222033 is 33022212102.

20121222033 is a `hidden beast` number, since 201 + 212 + 220 + 33 = 666.

It is not a de Polignac number, because 20121222033 - 2⁵ = 20121222001 is a prime.

It is a super-2 number, since 2×20121222033² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20121221997 and 20121222015.

It is not an unprimeable number, because it can be changed into a prime (20121222533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105966 + ... + 226872.

Almost surely, 2^20121222033 is an apocalyptic number.

It is an amenable number.

20121222033 is a deficient number, since it is larger than the sum of its proper divisors (12377397471).

20121222033 is a wasteful number, since it uses less digits than its factorization.

20121222033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121006 (or 120962 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20121222033 its reverse (33022212102), we get a palindrome (53143434135).

The spelling of 20121222033 in words is "twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, thirty-three".