20212344242 has 16 divisors (see below), whose sum is σ = 32236289280. Its totient is φ = 9471889728.

The previous prime is 20212344211. The next prime is 20212344247. The reversal of 20212344242 is 24244321202.

It is a super-2 number, since 2×20212344242² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20212344247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1235558 + ... + 1251809.

It is an arithmetic number, because the mean of its divisors is an integer number (2014768080).

Almost surely, 2^20212344242 is an apocalyptic number.

20212344242 is a deficient number, since it is larger than the sum of its proper divisors (12023945038).

20212344242 is a wasteful number, since it uses less digits than its factorization.

20212344242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487625.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20212344242 its reverse (24244321202), we get a palindrome (44456665444).

The spelling of 20212344242 in words is "twenty billion, two hundred twelve million, three hundred forty-four thousand, two hundred forty-two".