20122212133 has 4 divisors (see below), whose sum is σ = 20255471968. Its totient is φ = 19988952300.

The previous prime is 20122212079. The next prime is 20122212151. The reversal of 20122212133 is 33121222102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20122212133 - 2²¹ = 20120114981 is a prime.

It is a super-2 number, since 2×20122212133² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20122212133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122212233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66629691 + ... + 66629992.

It is an arithmetic number, because the mean of its divisors is an integer number (5063867992).

Almost surely, 2^20122212133 is an apocalyptic number.

It is an amenable number.

20122212133 is a deficient number, since it is larger than the sum of its proper divisors (133259835).

20122212133 is a wasteful number, since it uses less digits than its factorization.

20122212133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133259834.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20122212133 its reverse (33121222102), we get a palindrome (53243434235).

The spelling of 20122212133 in words is "twenty billion, one hundred twenty-two million, two hundred twelve thousand, one hundred thirty-three".