20021201011112 has 64 divisors (see below), whose sum is σ = 45783941713920. Its totient is φ = 8012189703168.

The previous prime is 20021201011073. The next prime is 20021201011213. The reversal of 20021201011112 is 21111010212002.

It is a super-2 number, since 2×20021201011112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82677023 + ... + 82918830.

It is an arithmetic number, because the mean of its divisors is an integer number (715374089280).

Almost surely, 2^{20021201011112} is an apocalyptic number.

It is an amenable number.

20021201011112 is an abundant number, since it is smaller than the sum of its proper divisors (25762740702808).

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

20021201011112 is a wasteful number, since it uses less digits than its factorization.

20021201011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165596010 (or 165596006 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20021201011112 its reverse (21111010212002), we get a palindrome (41132211223114).

The spelling of 20021201011112 in words is "twenty trillion, twenty-one billion, two hundred one million, eleven thousand, one hundred twelve".