100200120221020 has 24 divisors (see below), whose sum is σ = 210421351655424. Its totient is φ = 40079838718656.

The previous prime is 100200120221009. The next prime is 100200120221051. The reversal of 100200120221020 is 20122021002001.

It is a happy number.

It is a super-2 number, since 2×100200120221020² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 9132124 + ... + 16846243.

It is an arithmetic number, because the mean of its divisors is an integer number (8767556318976).

Almost surely, 2^{100200120221020} is an apocalyptic number.

100200120221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100200120221020 is an abundant number, since it is smaller than the sum of its proper divisors (110221231434404).

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

100200120221020 is a wasteful number, since it uses less digits than its factorization.

100200120221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26171229 (or 26171227 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100200120221020 its reverse (20122021002001), we get a palindrome (120322141223021).

The spelling of 100200120221020 in words is "one hundred trillion, two hundred billion, one hundred twenty million, two hundred twenty-one thousand, twenty".