20202111102112 has 24 divisors (see below), whose sum is σ = 39773093956596. Its totient is φ = 10101007875072.

The previous prime is 20202111102077. The next prime is 20202111102113. The reversal of 20202111102112 is 21120111120202.

It can be written as a sum of positive squares in 2 ways, for example, as 12166450945936 + 8035660156176 = 3488044^2 + 2834724^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (20202111102113) 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, 5970598 + ... + 8720794.

Almost surely, 2^{20202111102112} is an apocalyptic number.

It is an amenable number.

20202111102112 is a deficient number, since it is larger than the sum of its proper divisors (19570982854484).

20202111102112 is a wasteful number, since it uses less digits than its factorization.

20202111102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979760 (or 2979752 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20202111102112 its reverse (21120111120202), we get a palindrome (41322222222314).

The spelling of 20202111102112 in words is "twenty trillion, two hundred two billion, one hundred eleven million, one hundred two thousand, one hundred twelve".