20220320121 has 8 divisors (see below), whose sum is σ = 27830118144. Its totient is φ = 13045367760.

The previous prime is 20220320117. The next prime is 20220320161. The reversal of 20220320121 is 12102302202.

It is a happy number.

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

It is not a de Polignac number, because 20220320121 - 2² = 20220320117 is a prime.

It is a super-2 number, since 2×20220320121² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20220320121.

It is not an unprimeable number, because it can be changed into a prime (20220320161) 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 7 ways as a sum of consecutive naturals, for example, 108711306 + ... + 108711491.

It is an arithmetic number, because the mean of its divisors is an integer number (3478764768).

Almost surely, 2^20220320121 is an apocalyptic number.

It is an amenable number.

20220320121 is a deficient number, since it is larger than the sum of its proper divisors (7609798023).

20220320121 is a wasteful number, since it uses less digits than its factorization.

20220320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217422831.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20220320121 its reverse (12102302202), we get a palindrome (32322622323).

The spelling of 20220320121 in words is "twenty billion, two hundred twenty million, three hundred twenty thousand, one hundred twenty-one".