100120222012020 has 144 divisors (see below), whose sum is σ = 326112116783040. Its totient is φ = 22884183522816.

The previous prime is 100120222012009. The next prime is 100120222012067. The reversal of 100120222012020 is 20210222021001.

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 47 ways as a sum of consecutive naturals, for example, 167808472 + ... + 168404048.

It is an arithmetic number, because the mean of its divisors is an integer number (2264667477660).

Almost surely, 2^{100120222012020} is an apocalyptic number.

100120222012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100120222012020 is an abundant number, since it is smaller than the sum of its proper divisors (225991894771020).

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

100120222012020 is a wasteful number, since it uses less digits than its factorization.

100120222012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652782 (or 652773 counting only the distinct ones).

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

Adding to 100120222012020 its reverse (20210222021001), we get a palindrome (120330444033021).

The spelling of 100120222012020 in words is "one hundred trillion, one hundred twenty billion, two hundred twenty-two million, twelve thousand, twenty".