20240210221 has 16 divisors (see below), whose sum is σ = 25484404608. Its totient is φ = 15615432000.

The previous prime is 20240210203. The next prime is 20240210267. The reversal of 20240210221 is 12201204202.

It is not a de Polignac number, because 20240210221 - 2⁵ = 20240210189 is a prime.

It is a super-2 number, since 2×20240210221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20240210195 and 20240210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240210621) 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 15 ways as a sum of consecutive naturals, for example, 1293510 + ... + 1309063.

It is an arithmetic number, because the mean of its divisors is an integer number (1592775288).

Almost surely, 2^20240210221 is an apocalyptic number.

It is an amenable number.

20240210221 is a deficient number, since it is larger than the sum of its proper divisors (5244194387).

20240210221 is a wasteful number, since it uses less digits than its factorization.

20240210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602692.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20240210221 its reverse (12201204202), we get a palindrome (32441414423).

The spelling of 20240210221 in words is "twenty billion, two hundred forty million, two hundred ten thousand, two hundred twenty-one".