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22011111201 = 343199857431
BaseRepresentation
bin10100011111111101…
…101110011100100001
32002210222210022011210
4110133331232130201
5330034321024301
614040050300333
71406312233602
oct243775563441
962728708153
1022011111201
1193757756a2
1243235876a9
1320ca242571
1410cb433da9
1588c5c5ad6
hex51ff6e721

22011111201 has 16 divisors (see below), whose sum is σ = 30181606400. Its totient is φ = 14260775760.

The previous prime is 22011111191. The next prime is 22011111259. The reversal of 22011111201 is 10211111022.

It is not a de Polignac number, because 22011111201 - 26 = 22011111137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011111401) 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, 403045 + ... + 454386.

It is an arithmetic number, because the mean of its divisors is an integer number (1886350400).

Almost surely, 222011111201 is an apocalyptic number.

It is an amenable number.

22011111201 is a deficient number, since it is larger than the sum of its proper divisors (8170495199).

22011111201 is a wasteful number, since it uses less digits than its factorization.

22011111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857676.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22011111201 its reverse (10211111022), we get a palindrome (32222222223).

The spelling of 22011111201 in words is "twenty-two billion, eleven million, one hundred eleven thousand, two hundred one".

Divisors: 1 3 43 129 199 597 8557 25671 857431 2572293 36869533 110608599 170628769 511886307 7337037067 22011111201