20220220237 has 4 divisors (see below), whose sum is σ = 23108823136. Its totient is φ = 17331617340.

The previous prime is 20220220219. The next prime is 20220220259. The reversal of 20220220237 is 73202202202.

It is a happy number.

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 20220220237 - 2¹¹ = 20220218189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220220637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444301439 + ... + 1444301452.

It is an arithmetic number, because the mean of its divisors is an integer number (5777205784).

Almost surely, 2^20220220237 is an apocalyptic number.

It is an amenable number.

20220220237 is a deficient number, since it is larger than the sum of its proper divisors (2888602899).

20220220237 is an equidigital number, since it uses as much as digits as its factorization.

20220220237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888602898.

The product of its (nonzero) digits is 1344, while the sum is 22.

Adding to 20220220237 its reverse (73202202202), we get a palindrome (93422422439).

The spelling of 20220220237 in words is "twenty billion, two hundred twenty million, two hundred twenty thousand, two hundred thirty-seven".