100122210220020 has 96 divisors (see below), whose sum is σ = 295099796772480. Its totient is φ = 25293795816960.

The previous prime is 100122210219937. The next prime is 100122210220093. The reversal of 100122210220020 is 20022012221001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143991990 + ... + 144685650.

It is an arithmetic number, because the mean of its divisors is an integer number (3073956216380).

Almost surely, 2^{100122210220020} is an apocalyptic number.

100122210220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100122210220020 is an abundant number, since it is smaller than the sum of its proper divisors (194977586552460).

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

100122210220020 is a wasteful number, since it uses less digits than its factorization.

100122210220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820305 (or 820303 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100122210220020 its reverse (20022012221001), we get a palindrome (120144222441021).

The spelling of 100122210220020 in words is "one hundred trillion, one hundred twenty-two billion, two hundred ten million, two hundred twenty thousand, twenty".