220100002012121 has 8 divisors (see below), whose sum is σ = 274410392119104. Its totient is φ = 171506495074320.

The previous prime is 220100002012063. The next prime is 220100002012223. The reversal of 220100002012121 is 121210200001022.

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

It is a de Polignac number, because none of the positive numbers 2^k-220100002012121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220100002012096 and 220100002012105.

It is not an unprimeable number, because it can be changed into a prime (220100002012321) 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, 1429220792210 + ... + 1429220792363.

It is an arithmetic number, because the mean of its divisors is an integer number (34301299014888).

Almost surely, 2^{220100002012121} is an apocalyptic number.

It is an amenable number.

220100002012121 is a deficient number, since it is larger than the sum of its proper divisors (54310390106983).

220100002012121 is a wasteful number, since it uses less digits than its factorization.

220100002012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858441584591.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220100002012121 its reverse (121210200001022), we get a palindrome (341310202013143).

The spelling of 220100002012121 in words is "two hundred twenty trillion, one hundred billion, two million, twelve thousand, one hundred twenty-one".