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20010112212201 = 3371597112881203
BaseRepresentation
bin1001000110010111101111…
…01000010101110011101001
32121211221121010101002222120
410203023313220111303221
510110321202211242301
6110320304005541453
74133453143301046
oct443136750256351
977757533332876
1020010112212201
116415271754801
1222b2116114889
13b21c3a2cc457
144d26cd2701cd
1524a797a0be36
hex1232f7a15ce9

20010112212201 has 16 divisors (see below), whose sum is σ = 27418392926784. Its totient is φ = 12971404684224.

The previous prime is 20010112212173. The next prime is 20010112212221. The reversal of 20010112212201 is 10221221101002.

It is not a de Polignac number, because 20010112212201 - 215 = 20010112179433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20010112212221) 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, 56263335 + ... + 56617868.

It is an arithmetic number, because the mean of its divisors is an integer number (1713649557924).

Almost surely, 220010112212201 is an apocalyptic number.

It is an amenable number.

20010112212201 is a deficient number, since it is larger than the sum of its proper divisors (7408280714583).

20010112212201 is a wasteful number, since it uses less digits than its factorization.

20010112212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112882840.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20010112212201 its reverse (10221221101002), we get a palindrome (30231333313203).

It can be divided in two parts, 20010 and 112212201, that added together give a palindrome (112232211).

The spelling of 20010112212201 in words is "twenty trillion, ten billion, one hundred twelve million, two hundred twelve thousand, two hundred one".

Divisors: 1 3 37 111 1597 4791 59089 177267 112881203 338643609 4176604511 12529813533 180271281191 540813843573 6670037404067 20010112212201