20111001222112 has 48 divisors (see below), whose sum is σ = 39989297224800. Its totient is φ = 9955139397120.

The previous prime is 20111001222101. The next prime is 20111001222121. The reversal of 20111001222112 is 21122210011102.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 1941037 + ... + 6632467.

It is an arithmetic number, because the mean of its divisors is an integer number (833110358850).

Almost surely, 2^{20111001222112} is an apocalyptic number.

It is an amenable number.

20111001222112 is a deficient number, since it is larger than the sum of its proper divisors (19878296002688).

20111001222112 is a wasteful number, since it uses less digits than its factorization.

20111001222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692779 (or 4692771 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20111001222112 its reverse (21122210011102), we get a palindrome (41233211233214).

The spelling of 20111001222112 in words is "twenty trillion, one hundred eleven billion, one million, two hundred twenty-two thousand, one hundred twelve".