20122435012 has 12 divisors (see below), whose sum is σ = 35215751340. Its totient is φ = 10060791776.

The previous prime is 20122435007. The next prime is 20122435019. The reversal of 20122435012 is 21053422102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15123096576 + 4999338436 = 122976^2 + 70706^2 .

It is not an unprimeable number, because it can be changed into a prime (20122435019) 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, 15414 + ... + 201202.

It is an arithmetic number, because the mean of its divisors is an integer number (2934645945).

Almost surely, 2^20122435012 is an apocalyptic number.

It is an amenable number.

20122435012 is a deficient number, since it is larger than the sum of its proper divisors (15093316328).

20122435012 is a wasteful number, since it uses less digits than its factorization.

20122435012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212870 (or 212868 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20122435012 its reverse (21053422102), we get a palindrome (41175857114).

The spelling of 20122435012 in words is "twenty billion, one hundred twenty-two million, four hundred thirty-five thousand, twelve".