20220121441 has 6 divisors (see below), whose sum is σ = 21895161270. Its totient is φ = 18664727328.

The previous prime is 20220121387. The next prime is 20220121459. The reversal of 20220121441 is 14412102202.

It can be written as a sum of positive squares in 3 ways, for example, as 1797760000 + 18422361441 = 42400^2 + 135729^2 .

It is not a de Polignac number, because 20220121441 - 2¹⁷ = 20219990369 is a prime.

It is a super-2 number, since 2×20220121441² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220127441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59822676 + ... + 59823013.

It is an arithmetic number, because the mean of its divisors is an integer number (3649193545).

Almost surely, 2^20220121441 is an apocalyptic number.

It is an amenable number.

20220121441 is a deficient number, since it is larger than the sum of its proper divisors (1675039829).

20220121441 is a wasteful number, since it uses less digits than its factorization.

20220121441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119645715 (or 119645702 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20220121441 its reverse (14412102202), we get a palindrome (34632223643).

The spelling of 20220121441 in words is "twenty billion, two hundred twenty million, one hundred twenty-one thousand, four hundred forty-one".