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22211001001 = 743891018209
BaseRepresentation
bin10100101011111000…
…001111101010101001
32010022220220202102201
4110223320033222221
5330442004013001
614111550500201
71414260251650
oct245370175251
963286822381
1022211001001
119468592882
12437a504661
13212c78b657
141109bc8197
1589ee0c501
hex52be0faa9

22211001001 has 32 divisors (see below), whose sum is σ = 26529465600. Its totient is φ = 18202060800.

The previous prime is 22211000989. The next prime is 22211001011. The reversal of 22211001001 is 10010011222.

It is not a de Polignac number, because 22211001001 - 27 = 22211000873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22211001011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2701585 + ... + 2709793.

It is an arithmetic number, because the mean of its divisors is an integer number (829045800).

Almost surely, 222211001001 is an apocalyptic number.

It is an amenable number.

22211001001 is a deficient number, since it is larger than the sum of its proper divisors (4318464599).

22211001001 is a wasteful number, since it uses less digits than its factorization.

22211001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8449.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22211001001 its reverse (10010011222), we get a palindrome (32221012223).

The spelling of 22211001001 in words is "twenty-two billion, two hundred eleven million, one thousand, one".

Divisors: 1 7 43 89 101 301 623 707 3827 4343 8209 8989 26789 30401 57463 62923 352987 386527 730601 829109 2470909 2705689 5114207 5803763 31415843 35651687 73790701 219910901 249561809 516534907 3173000143 22211001001