20021202112 has 14 divisors (see below), whose sum is σ = 39729573068. Its totient is φ = 10010601024.

The previous prime is 20021202083. The next prime is 20021202133. The reversal of 20021202112 is 21120212002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20021202092 and 20021202101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156415578 + ... + 156415705.

Almost surely, 2^20021202112 is an apocalyptic number.

It is an amenable number.

20021202112 is a deficient number, since it is larger than the sum of its proper divisors (19708370956).

20021202112 is an equidigital number, since it uses as much as digits as its factorization.

20021202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312831295 (or 312831285 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20021202112 its reverse (21120212002), we get a palindrome (41141414114).

The spelling of 20021202112 in words is "twenty billion, twenty-one million, two hundred two thousand, one hundred twelve".