100120000220121 has 32 divisors (see below), whose sum is σ = 156286318583808. Its totient is φ = 55815513644160.

The previous prime is 100120000220083. The next prime is 100120000220129. The reversal of 100120000220121 is 121022000021001.

It is not a de Polignac number, because 100120000220121 - 2¹⁰ = 100120000219097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100120000220097 and 100120000220106.

It is not an unprimeable number, because it can be changed into a prime (100120000220129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105021226 + ... + 105970268.

It is an arithmetic number, because the mean of its divisors is an integer number (4883947455744).

Almost surely, 2^{100120000220121} is an apocalyptic number.

It is an amenable number.

100120000220121 is a deficient number, since it is larger than the sum of its proper divisors (56166318363687).

100120000220121 is a wasteful number, since it uses less digits than its factorization.

100120000220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071621.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100120000220121 its reverse (121022000021001), we get a palindrome (221142000241122).

The spelling of 100120000220121 in words is "one hundred trillion, one hundred twenty billion, two hundred twenty thousand, one hundred twenty-one".