100220111121012 has 24 divisors (see below), whose sum is σ = 233924901000000. Its totient is φ = 33395564414016.

The previous prime is 100220111120971. The next prime is 100220111121017. The reversal of 100220111121012 is 210121111022001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100220111120982 and 100220111121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220111121017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392374137 + ... + 1392446112.

It is an arithmetic number, because the mean of its divisors is an integer number (9746870875000).

Almost surely, 2^{100220111121012} is an apocalyptic number.

100220111121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100220111121012 is an abundant number, since it is smaller than the sum of its proper divisors (133704789878988).

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

100220111121012 is a wasteful number, since it uses less digits than its factorization.

100220111121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784823255 (or 2784823253 counting only the distinct ones).

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

Adding to 100220111121012 its reverse (210121111022001), we get a palindrome (310341222143013).

The spelling of 100220111121012 in words is "one hundred trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty-one thousand, twelve".