20245142212 has 48 divisors (see below), whose sum is σ = 36148896000. Its totient is φ = 9919413504.

The previous prime is 20245142209. The next prime is 20245142213. The reversal of 20245142212 is 21224154202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20245142213) 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, 23567839 + ... + 23568697.

It is an arithmetic number, because the mean of its divisors is an integer number (753102000).

Almost surely, 2^20245142212 is an apocalyptic number.

It is an amenable number.

20245142212 is a deficient number, since it is larger than the sum of its proper divisors (15903753788).

20245142212 is a wasteful number, since it uses less digits than its factorization.

20245142212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468 (or 1466 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 20245142212 its reverse (21224154202), we get a palindrome (41469296414).

The spelling of 20245142212 in words is "twenty billion, two hundred forty-five million, one hundred forty-two thousand, two hundred twelve".