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22120212201 = 3173711722423
BaseRepresentation
bin10100100110011101…
…111010011011101001
32010002121002012121120
4110212131322123221
5330300233242301
614054544525453
71412105462403
oct244635723351
963077065546
1022120212201
11942131290a
124354020889
132116a21679
1410dbb13b73
15896e76e36
hex52677a6e9

22120212201 has 16 divisors (see below), whose sum is σ = 32072552064. Its totient is φ = 13504230144.

The previous prime is 22120212199. The next prime is 22120212217. The reversal of 22120212201 is 10221202122.

It is not a de Polignac number, because 22120212201 - 21 = 22120212199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22120212251) 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, 5859325 + ... + 5863098.

It is an arithmetic number, because the mean of its divisors is an integer number (2004534504).

Almost surely, 222120212201 is an apocalyptic number.

It is an amenable number.

22120212201 is a deficient number, since it is larger than the sum of its proper divisors (9952339863).

22120212201 is a wasteful number, since it uses less digits than its factorization.

22120212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11722480.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22120212201 its reverse (10221202122), we get a palindrome (32341414323).

The spelling of 22120212201 in words is "twenty-two billion, one hundred twenty million, two hundred twelve thousand, two hundred one".

Divisors: 1 3 17 37 51 111 629 1887 11722423 35167269 199281191 433729651 597843573 1301188953 7373404067 22120212201