20122042412 has 6 divisors (see below), whose sum is σ = 35213574228. Its totient is φ = 10061021204.

The previous prime is 20122042403. The next prime is 20122042417. The reversal of 20122042412 is 21424022102.

It is not an unprimeable number, because it can be changed into a prime (20122042417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515255298 + ... + 2515255305.

It is an arithmetic number, because the mean of its divisors is an integer number (5868929038).

Almost surely, 2^20122042412 is an apocalyptic number.

It is an amenable number.

20122042412 is a deficient number, since it is larger than the sum of its proper divisors (15091531816).

20122042412 is a wasteful number, since it uses less digits than its factorization.

20122042412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030510607 (or 5030510605 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20122042412 its reverse (21424022102), we get a palindrome (41546064514).

The spelling of 20122042412 in words is "twenty billion, one hundred twenty-two million, forty-two thousand, four hundred twelve".