10011121111212 has 24 divisors (see below), whose sum is σ = 25156150484976. Its totient is φ = 3080344957248.

The previous prime is 10011121111169. The next prime is 10011121111237. The reversal of 10011121111212 is 21211112111001.

It is a junction number, because it is equal to n+sod(n) for n = 10011121111191 and 10011121111200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32086926483 + ... + 32086926794.

It is an arithmetic number, because the mean of its divisors is an integer number (1048172936874).

Almost surely, 2^{10011121111212} is an apocalyptic number.

10011121111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10011121111212 is an abundant number, since it is smaller than the sum of its proper divisors (15145029373764).

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

10011121111212 is a wasteful number, since it uses less digits than its factorization.

10011121111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64173853297 (or 64173853295 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10011121111212 its reverse (21211112111001), we get a palindrome (31222233222213).

The spelling of 10011121111212 in words is "ten trillion, eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred twelve".