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2221211131132 = 227312776392173
BaseRepresentation
bin100000010100101010100…
…000000001110011111100
321212100100000121122021211
4200110222200001303330
5242343020022144012
64420224343134204
7316322453044360
oct40245240016374
97770300548254
102221211131132
1178701285a824
122ba59b144364
131315c814bcc6
1479715a432a0
153cba36a66a7
hex2052a801cfc

2221211131132 has 48 divisors (see below), whose sum is σ = 4585941133312. Its totient is φ = 921196463040.

The previous prime is 2221211131103. The next prime is 2221211131189. The reversal of 2221211131132 is 2311311121222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24052198 + ... + 24144370.

Almost surely, 22221211131132 is an apocalyptic number.

It is an amenable number.

2221211131132 is an abundant number, since it is smaller than the sum of its proper divisors (2364730002180).

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

2221211131132 is a wasteful number, since it uses less digits than its factorization.

2221211131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119978 (or 119976 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

Adding to 2221211131132 its reverse (2311311121222), we get a palindrome (4532522252354).

The spelling of 2221211131132 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, one hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 27763 55526 92173 111052 184346 194341 368692 388682 645211 777364 860653 1290422 1721306 2580844 2857363 3442612 5714726 6024571 11429452 12049142 20001541 24098284 40003082 80006164 2558998999 5117997998 10235995996 17912992993 35825985986 71651971972 79328968969 158657937938 317315875876 555302782783 1110605565566 2221211131132