220102020021121 has 8 divisors (see below), whose sum is σ = 251569500266880. Its totient is φ = 188640623407488.

The previous prime is 220102020021031. The next prime is 220102020021133. The reversal of 220102020021121 is 121120020201022.

It is a happy number.

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

It is not a de Polignac number, because 220102020021121 - 2²³ = 220102011632513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220102020021095 and 220102020021104.

It is not an unprimeable number, because it can be changed into a prime (220102000021121) 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, 1520830501 + ... + 1520975218.

It is an arithmetic number, because the mean of its divisors is an integer number (31446187533360).

Almost surely, 2^{220102020021121} is an apocalyptic number.

It is an amenable number.

220102020021121 is a deficient number, since it is larger than the sum of its proper divisors (31467480245759).

220102020021121 is a wasteful number, since it uses less digits than its factorization.

220102020021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041816063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220102020021121 its reverse (121120020201022), we get a palindrome (341222040222143).

The spelling of 220102020021121 in words is "two hundred twenty trillion, one hundred two billion, twenty million, twenty-one thousand, one hundred twenty-one".