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1220122010 = 25532302117
BaseRepresentation
bin100100010111001…
…1001010110011010
310011000212121202002
41020232121112122
54444322401020
6321023241002
742143603012
oct11056312632
93130777662
101220122010
115767aa7a8
122a0749162
13165a1b2b3
14b808ac42
15721b2975
hex48b9959a

1220122010 has 16 divisors (see below), whose sum is σ = 2237658696. Its totient is φ = 478840128.

The previous prime is 1220122003. The next prime is 1220122039. The reversal of 1220122010 is 102210221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1062694801 + 157427209 = 32599^2 + 12547^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220121982 and 1220122000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150529 + ... + 1151588.

Almost surely, 21220122010 is an apocalyptic number.

1220122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220122010 is a deficient number, since it is larger than the sum of its proper divisors (1017536686).

1220122010 is a wasteful number, since it uses less digits than its factorization.

1220122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302177.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1220122010 is about 34930.2449175496. The cubic root of 1220122010 is about 1068.5653495386.

Adding to 1220122010 its reverse (102210221), we get a palindrome (1322332231).

The spelling of 1220122010 in words is "one billion, two hundred twenty million, one hundred twenty-two thousand, ten".

Divisors: 1 2 5 10 53 106 265 530 2302117 4604234 11510585 23021170 122012201 244024402 610061005 1220122010