20110212196 has 18 divisors (see below), whose sum is σ = 36789527222. Its totient is φ = 9617926560.

The previous prime is 20110212191. The next prime is 20110212211. The reversal of 20110212196 is 69121201102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14960714596 + 5149497600 = 122314^2 + 71760^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20110212196.

It is not an unprimeable number, because it can be changed into a prime (20110212191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4749825 + ... + 4754056.

Almost surely, 2^20110212196 is an apocalyptic number.

It is an amenable number.

20110212196 is a deficient number, since it is larger than the sum of its proper divisors (16679315026).

20110212196 is a wasteful number, since it uses less digits than its factorization.

20110212196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9503931 (or 9503906 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 20110212196 its reverse (69121201102), we get a palindrome (89231413298).

The spelling of 20110212196 in words is "twenty billion, one hundred ten million, two hundred twelve thousand, one hundred ninety-six".