100120111021 has 8 divisors (see below), whose sum is σ = 115602603200. Its totient is φ = 84932523648.

The previous prime is 100120111019. The next prime is 100120111103. The reversal of 100120111021 is 120111021001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100120111021 - 2¹ = 100120111019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100120110989 and 100120111007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120111001) 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, 73725471 + ... + 73726828.

It is an arithmetic number, because the mean of its divisors is an integer number (14450325400).

Almost surely, 2^100120111021 is an apocalyptic number.

It is an amenable number.

100120111021 is a deficient number, since it is larger than the sum of its proper divisors (15482492179).

100120111021 is an equidigital number, since it uses as much as digits as its factorization.

100120111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147452403.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100120111021 its reverse (120111021001), we get a palindrome (220231132022).

The spelling of 100120111021 in words is "one hundred billion, one hundred twenty million, one hundred eleven thousand, twenty-one".