22012100111012 has 48 divisors (see below), whose sum is σ = 42860270420352. Its totient is φ = 9806564302080.

The previous prime is 22012100110943. The next prime is 22012100111017. The reversal of 22012100111012 is 21011100121022.

It is not an unprimeable number, because it can be changed into a prime (22012100111017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2625593 + ... + 7135680.

It is an arithmetic number, because the mean of its divisors is an integer number (892922300424).

Almost surely, 2^{22012100111012} is an apocalyptic number.

22012100111012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22012100111012 is a deficient number, since it is larger than the sum of its proper divisors (20848170309340).

22012100111012 is a wasteful number, since it uses less digits than its factorization.

22012100111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9762308 (or 9762306 counting only the distinct ones).

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

Adding to 22012100111012 its reverse (21011100121022), we get a palindrome (43023200232034).

The spelling of 22012100111012 in words is "twenty-two trillion, twelve billion, one hundred million, one hundred eleven thousand, twelve".