100220020000121 has 16 divisors (see below), whose sum is σ = 115343762467200. Its totient is φ = 85298877163008.

The previous prime is 100220020000103. The next prime is 100220020000129. The reversal of 100220020000121 is 121000020022001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100220020000121 - 2¹⁸ = 100220019737977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100220020000129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38335736 + ... + 40866473.

It is an arithmetic number, because the mean of its divisors is an integer number (7208985154200).

Almost surely, 2^{100220020000121} is an apocalyptic number.

It is an amenable number.

100220020000121 is a deficient number, since it is larger than the sum of its proper divisors (15123742467079).

100220020000121 is a wasteful number, since it uses less digits than its factorization.

100220020000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79203488.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100220020000121 its reverse (121000020022001), we get a palindrome (221220040022122).

The spelling of 100220020000121 in words is "one hundred trillion, two hundred twenty billion, twenty million, one hundred twenty-one", and thus it is an aban number.