20021200220112 has 80 divisors (see below), whose sum is σ = 63657149431680. Its totient is φ = 5280316540416.

The previous prime is 20021200220069. The next prime is 20021200220159. The reversal of 20021200220112 is 21102200212002.

It is a junction number, because it is equal to n+sod(n) for n = 20021200220091 and 20021200220100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2291799687 + ... + 2291808422.

It is an arithmetic number, because the mean of its divisors is an integer number (795714367896).

Almost surely, 2^{20021200220112} is an apocalyptic number.

It is an amenable number.

20021200220112 is an abundant number, since it is smaller than the sum of its proper divisors (43635949211568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021200220112 is a wasteful number, since it uses less digits than its factorization.

20021200220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583608140 (or 4583608134 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20021200220112 its reverse (21102200212002), we get a palindrome (41123400432114).

The spelling of 20021200220112 in words is "twenty trillion, twenty-one billion, two hundred million, two hundred twenty thousand, one hundred twelve".