20242220386 has 4 divisors (see below), whose sum is σ = 30363330582. Its totient is φ = 10121110192.

The previous prime is 20242220377. The next prime is 20242220387. The reversal of 20242220386 is 68302224202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68302224202 = 2 ⋅34151112101.

It can be written as a sum of positive squares in only one way, i.e., 12821259361 + 7420961025 = 113231^2 + 86145^2 .

It is not an unprimeable number, because it can be changed into a prime (20242220387) 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 as a sum of consecutive naturals, namely, 5060555095 + ... + 5060555098.

Almost surely, 2^20242220386 is an apocalyptic number.

20242220386 is a deficient number, since it is larger than the sum of its proper divisors (10121110196).

20242220386 is a wasteful number, since it uses less digits than its factorization.

20242220386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121110195.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 20242220386 its reverse (68302224202), we get a palindrome (88544444588).

The spelling of 20242220386 in words is "twenty billion, two hundred forty-two million, two hundred twenty thousand, three hundred eighty-six".