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2222102101212 = 223278817865481
BaseRepresentation
bin100000010101011111100…
…110110011110011011100
321212102122010010121110200
4200111133212303303130
5242401331114214322
64420453011503500
7316353522133650
oct40253746636334
97772563117420
102222102101212
1178742a784834
122ba7a95b7b90
1313170a903536
147979c0cca60
153cc069ec8ac
hex2055f9b3cdc

2222102101212 has 36 divisors (see below), whose sum is σ = 6419406070896. Its totient is φ = 634886314560.

The previous prime is 2222102101207. The next prime is 2222102101213. The reversal of 2222102101212 is 2121012012222.

It is a happy number.

2222102101212 is a `hidden beast` number, since 22 + 221 + 0 + 210 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222102101213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4408932489 + ... + 4408932992.

Almost surely, 22222102101212 is an apocalyptic number.

It is an amenable number.

2222102101212 is an abundant number, since it is smaller than the sum of its proper divisors (4197303969684).

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

2222102101212 is a wasteful number, since it uses less digits than its factorization.

2222102101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8817865498 (or 8817865493 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2222102101212 its reverse (2121012012222), we get a palindrome (4343114113434).

The spelling of 2222102101212 in words is "two trillion, two hundred twenty-two billion, one hundred two million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 8817865481 17635730962 26453596443 35271461924 52907192886 61725058367 79360789329 105814385772 123450116734 158721578658 185175175101 246900233468 317443157316 370350350202 555525525303 740700700404 1111051050606 2222102101212