20033322121 has 8 divisors (see below), whose sum is σ = 21229261704. Its totient is φ = 18839328000.

The previous prime is 20033322097. The next prime is 20033322131. The reversal of 20033322121 is 12122333002.

It can be written as a sum of positive squares in 4 ways, for example, as 246961225 + 19786360896 = 15715^2 + 140664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20033322121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20033322131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465130 + ... + 506371.

It is an arithmetic number, because the mean of its divisors is an integer number (2653657713).

Almost surely, 2^20033322121 is an apocalyptic number.

It is an amenable number.

20033322121 is a deficient number, since it is larger than the sum of its proper divisors (1195939583).

20033322121 is a wasteful number, since it uses less digits than its factorization.

20033322121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972731.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20033322121 its reverse (12122333002), we get a palindrome (32155655123).

The spelling of 20033322121 in words is "twenty billion, thirty-three million, three hundred twenty-two thousand, one hundred twenty-one".