100001221000010 has 64 divisors (see below), whose sum is σ = 204707357733888. Its totient is φ = 34842619200000.

The previous prime is 100001220999983. The next prime is 100001221000013. The reversal of 100001221000010 is 10000122100001.

It is not an unprimeable number, because it can be changed into a prime (100001221000013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144833171 + ... + 145521990.

It is an arithmetic number, because the mean of its divisors is an integer number (3198552464592).

Almost surely, 2^{100001221000010} is an apocalyptic number.

100001221000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100001221000010 is an abundant number, since it is smaller than the sum of its proper divisors (104706136733878).

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

100001221000010 is a wasteful number, since it uses less digits than its factorization.

100001221000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290355311.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100001221000010 its reverse (10000122100001), we get a palindrome (110001343100011).

It can be divided in two parts, 1000012 and 21000010, that added together give a palindrome (22000022).

The spelling of 100001221000010 in words is "one hundred trillion, one billion, two hundred twenty-one million, ten", and thus it is an aban number.