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22202211121 = 2317910914943
BaseRepresentation
bin10100101011010110…
…101101101100110001
32010022022101011222121
4110223112231230301
5330432231223441
614111034234241
71414122452326
oct245326555461
963268334877
1022202211121
119463629912
124377585981
13212aa0183c
14110897ab4d
1589e272dd1
hex52b5adb31

22202211121 has 16 divisors (see below), whose sum is σ = 23323023360. Its totient is φ = 21094630480.

The previous prime is 22202211107. The next prime is 22202211127. The reversal of 22202211121 is 12111220222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22202211121 - 29 = 22202210609 is a prime.

It is a super-2 number, since 2×222022111212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22202211095 and 22202211104.

It is not an unprimeable number, because it can be changed into a prime (22202211127) 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 15 ways as a sum of consecutive naturals, for example, 4489176 + ... + 4494118.

It is an arithmetic number, because the mean of its divisors is an integer number (1457688960).

Almost surely, 222202211121 is an apocalyptic number.

It is an amenable number.

22202211121 is a deficient number, since it is larger than the sum of its proper divisors (1120812239).

22202211121 is a wasteful number, since it uses less digits than its factorization.

22202211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22202211121 its reverse (12111220222), we get a palindrome (34313431343).

The spelling of 22202211121 in words is "twenty-two billion, two hundred two million, two hundred eleven thousand, one hundred twenty-one".

Divisors: 1 23 179 1091 4117 4943 25093 113689 195289 884797 4491647 5392813 20350331 124034699 965313527 22202211121