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1220110112 = 25132932957
BaseRepresentation
bin100100010111001…
…0110011100100000
310011000212000102102
41020232112130200
54444322010422
6321023105532
742143523224
oct11056263440
93130760372
101220110112
115767a1871
122a07422a8
13165a15a60
14b8086784
15721ae192
hex48b96720

1220110112 has 24 divisors (see below), whose sum is σ = 2586868956. Its totient is φ = 563127552.

The previous prime is 1220110109. The next prime is 1220110117. The reversal of 1220110112 is 2110110221.

Adding to 1220110112 its reverse (2110110221), we get a palindrome (3330220333).

It can be written as a sum of positive squares in 2 ways, for example, as 914699536 + 305410576 = 30244^2 + 17476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1220110093 and 1220110102.

It is not an unprimeable number, because it can be changed into a prime (1220110117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466063 + ... + 1466894.

Almost surely, 21220110112 is an apocalyptic number.

It is an amenable number.

1220110112 is an abundant number, since it is smaller than the sum of its proper divisors (1366758844).

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

1220110112 is a wasteful number, since it uses less digits than its factorization.

1220110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932980 (or 2932972 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1220110112 is about 34930.0746062759. The cubic root of 1220110112 is about 1068.5618761615.

The spelling of 1220110112 in words is "one billion, two hundred twenty million, one hundred ten thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 2932957 5865914 11731828 23463656 38128441 46927312 76256882 93854624 152513764 305027528 610055056 1220110112