100012021201220 has 48 divisors (see below), whose sum is σ = 222424266314880. Its totient is φ = 37644033867264.

The previous prime is 100012021201219. The next prime is 100012021201243. The reversal of 100012021201220 is 22102120210001.

It is a junction number, because it is equal to n+sod(n) for n = 100012021201195 and 100012021201204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27796400 + ... + 31187559.

It is an arithmetic number, because the mean of its divisors is an integer number (4633838881560).

Almost surely, 2^{100012021201220} is an apocalyptic number.

100012021201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100012021201220 is an abundant number, since it is smaller than the sum of its proper divisors (122412245113660).

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

100012021201220 is a wasteful number, since it uses less digits than its factorization.

100012021201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58988972 (or 58988970 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100012021201220 its reverse (22102120210001), we get a palindrome (122114141411221).

The spelling of 100012021201220 in words is "one hundred trillion, twelve billion, twenty-one million, two hundred one thousand, two hundred twenty".