20211102112 has 12 divisors (see below), whose sum is σ = 39790607346. Its totient is φ = 10105551040.

The previous prime is 20211102083. The next prime is 20211102113. The reversal of 20211102112 is 21120111202.

It can be written as a sum of positive squares in only one way, i.e., 13068147856 + 7142954256 = 114316^2 + 84516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20211102092 and 20211102101.

It is not an unprimeable number, because it can be changed into a prime (20211102113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315798439 + ... + 315798502.

Almost surely, 2^20211102112 is an apocalyptic number.

It is an amenable number.

20211102112 is a deficient number, since it is larger than the sum of its proper divisors (19579505234).

20211102112 is an equidigital number, since it uses as much as digits as its factorization.

20211102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631596951 (or 631596943 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20211102112 its reverse (21120111202), we get a palindrome (41331213314).

The spelling of 20211102112 in words is "twenty billion, two hundred eleven million, one hundred two thousand, one hundred twelve".