20101222112 has 12 divisors (see below), whose sum is σ = 39574281096. Its totient is φ = 10050611040.

The previous prime is 20101222051. The next prime is 20101222129. The reversal of 20101222112 is 21122210102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314081564 + ... + 314081627.

It is an arithmetic number, because the mean of its divisors is an integer number (3297856758).

Almost surely, 2^20101222112 is an apocalyptic number.

It is an amenable number.

20101222112 is a deficient number, since it is larger than the sum of its proper divisors (19473058984).

20101222112 is an equidigital number, since it uses as much as digits as its factorization.

20101222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628163201 (or 628163193 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20101222112 its reverse (21122210102), we get a palindrome (41223432214).

The spelling of 20101222112 in words is "twenty billion, one hundred one million, two hundred twenty-two thousand, one hundred twelve".