100101121201220 has 24 divisors (see below), whose sum is σ = 210495278314944. Its totient is φ = 39986558234336.

The previous prime is 100101121201163. The next prime is 100101121201223. The reversal of 100101121201220 is 22102121101001.

It is a junction number, because it is equal to n+sod(n) for n = 100101121201195 and 100101121201204.

It is not an unprimeable number, because it can be changed into a prime (100101121201223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3368125154 + ... + 3368154873.

It is an arithmetic number, because the mean of its divisors is an integer number (8770636596456).

Almost surely, 2^{100101121201220} is an apocalyptic number.

100101121201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100101121201220 is an abundant number, since it is smaller than the sum of its proper divisors (110394157113724).

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

100101121201220 is a wasteful number, since it uses less digits than its factorization.

100101121201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736280779 (or 6736280777 counting only the distinct ones).

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

Adding to 100101121201220 its reverse (22102121101001), we get a palindrome (122203242302221).

The spelling of 100101121201220 in words is "one hundred trillion, one hundred one billion, one hundred twenty-one million, two hundred one thousand, two hundred twenty".