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BaseRepresentation
bin11101011001011110100…
…111101110001011111101
321011010112202021222102221
4131121132213232023331
5231044403324201341
64144024402445341
7265645662343333
oct35313647561375
97133482258387
102020222100221
11709853788006
12287648363851
13118676c63650
146daca46bb53
153783d4baed1
hex1d65e9ee2fd

2020222100221 has 16 divisors (see below), whose sum is σ = 2296926049600. Its totient is φ = 1761429535488.

The previous prime is 2020222100213. The next prime is 2020222100231. The reversal of 2020222100221 is 1220012220202.

It is a cyclic number.

It is not a de Polignac number, because 2020222100221 - 23 = 2020222100213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020222100195 and 2020222100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020222100231) 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, 12051831 + ... + 12218308.

It is an arithmetic number, because the mean of its divisors is an integer number (143557878100).

Almost surely, 22020222100221 is an apocalyptic number.

It is an amenable number.

2020222100221 is a deficient number, since it is larger than the sum of its proper divisors (276703949379).

2020222100221 is a wasteful number, since it uses less digits than its factorization.

2020222100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24270508.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2020222100221 its reverse (1220012220202), we get a palindrome (3240234320423).

The spelling of 2020222100221 in words is "two trillion, twenty billion, two hundred twenty-two million, one hundred thousand, two hundred twenty-one".