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211021112201 = 7919913422881
BaseRepresentation
bin1100010010000111010…
…1101010001110001001
3202011200102110012020012
43010201311222032021
511424132401042301
6240535230441305
721150204600314
oct3044165521611
9664612405205
10211021112201
1181547a09999
1234a92663235
1316b8c729243
14a2dbac997b
155750cd3ebb
hex3121d6a389

211021112201 has 8 divisors (see below), whose sum is σ = 214766112000. Its totient is φ = 207302958720.

The previous prime is 211021112179. The next prime is 211021112221. The reversal of 211021112201 is 102211120112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-211021112201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211021112221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6695720 + ... + 6727161.

It is an arithmetic number, because the mean of its divisors is an integer number (26845764000).

Almost surely, 2211021112201 is an apocalyptic number.

It is an amenable number.

211021112201 is a deficient number, since it is larger than the sum of its proper divisors (3744999799).

211021112201 is a wasteful number, since it uses less digits than its factorization.

211021112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13423159.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211021112201 its reverse (102211120112), we get a palindrome (313232232313).

The spelling of 211021112201 in words is "two hundred eleven billion, twenty-one million, one hundred twelve thousand, two hundred one".

Divisors: 1 79 199 15721 13422881 1060407599 2671153319 211021112201