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22210102012 = 227389181889
BaseRepresentation
bin10100101011110100…
…110100001011111100
32010022212020002020211
4110223310310023330
5330441241231022
614111515322204
71414246516000
oct245364641374
963285202224
1022210102012
11946802940a
12437a150364
13212c5353c7
141109a32700
1589ecd0e77
hex52bd342fc

22210102012 has 48 divisors (see below), whose sum is σ = 45836280000. Its totient is φ = 9411612672.

The previous prime is 22210102001. The next prime is 22210102049. The reversal of 22210102012 is 21020101222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22210101983 and 22210102001.

It is a congruent number.

It is an unprimeable number.

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, 31164 + ... + 213052.

It is an arithmetic number, because the mean of its divisors is an integer number (954922500).

Almost surely, 222210102012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22210102012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22918140000).

22210102012 is an abundant number, since it is smaller than the sum of its proper divisors (23626177988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22210102012 is a wasteful number, since it uses less digits than its factorization.

22210102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182003 (or 181987 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22210102012 its reverse (21020101222), we get a palindrome (43230203234).

The spelling of 22210102012 in words is "twenty-two billion, two hundred ten million, one hundred two thousand, twelve".

Divisors: 1 2 4 7 14 28 49 89 98 178 196 343 356 623 686 1246 1372 2492 4361 8722 17444 30527 61054 122108 181889 363778 727556 1273223 2546446 5092892 8912561 16188121 17825122 32376242 35650244 62387927 64752484 113316847 124775854 226633694 249551708 453267388 793217929 1586435858 3172871716 5552525503 11105051006 22210102012