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1220110220110 = 25272944709059
BaseRepresentation
bin10001110000010100001…
…111000111101101001110
311022122022120122010210111
4101300110033013231032
5124442241204020420
62332302204230234
7154102316516245
oct21602417075516
94278276563714
101220110220110
1143049a458111
1217857053b37a
138b095a73c32
14430a730195c
1521b1047945a
hex11c143c7b4e

1220110220110 has 16 divisors (see below), whose sum is σ = 2197003208400. Its totient is φ = 487865240896.

The previous prime is 1220110220081. The next prime is 1220110220113. The reversal of 1220110220110 is 110220110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220110220113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22327240 + ... + 22381819.

It is an arithmetic number, because the mean of its divisors is an integer number (137312700525).

Almost surely, 21220110220110 is an apocalyptic number.

1220110220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220110220110 is a deficient number, since it is larger than the sum of its proper divisors (976892988290).

1220110220110 is a wasteful number, since it uses less digits than its factorization.

1220110220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44711795.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220110220110 its reverse (110220110221), we get a palindrome (1330330330331).

The spelling of 1220110220110 in words is "one trillion, two hundred twenty billion, one hundred ten million, two hundred twenty thousand, one hundred ten".

Divisors: 1 2 5 10 2729 5458 13645 27290 44709059 89418118 223545295 447090590 122011022011 244022044022 610055110055 1220110220110