100121220011112 has 64 divisors (see below), whose sum is σ = 262613036213760. Its totient is φ = 31767705964800.

The previous prime is 100121220011089. The next prime is 100121220011117. The reversal of 100121220011112 is 211110022121001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100121220011091 and 100121220011100.

It is not an unprimeable number, because it can be changed into a prime (100121220011117) 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, 1102999963 + ... + 1103090730.

It is an arithmetic number, because the mean of its divisors is an integer number (4103328690840).

Almost surely, 2^{100121220011112} is an apocalyptic number.

100121220011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100121220011112 is an abundant number, since it is smaller than the sum of its proper divisors (162491816202648).

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

100121220011112 is a wasteful number, since it uses less digits than its factorization.

100121220011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206090794 (or 2206090790 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100121220011112 its reverse (211110022121001), we get a palindrome (311231242132113).

The spelling of 100121220011112 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twenty million, eleven thousand, one hundred twelve".