100020221112 has 32 divisors (see below), whose sum is σ = 285772060800. Its totient is φ = 28577205984.

The previous prime is 100020221071. The next prime is 100020221129. The reversal of 100020221112 is 211122020001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297679062 + ... + 297679397.

It is an arithmetic number, because the mean of its divisors is an integer number (8930376900).

Almost surely, 2^100020221112 is an apocalyptic number.

100020221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100020221112 is an abundant number, since it is smaller than the sum of its proper divisors (185751839688).

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

100020221112 is a wasteful number, since it uses less digits than its factorization.

100020221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595358475 (or 595358471 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100020221112 its reverse (211122020001), we get a palindrome (311142241113).

The spelling of 100020221112 in words is "one hundred billion, twenty million, two hundred twenty-one thousand, one hundred twelve".