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1222020110 = 25122202011
BaseRepresentation
bin100100011010110…
…1000110000001110
310011011110001110002
41020311220300032
510000314120420
6321132044302
742165666563
oct11065506016
93134401402
101222020110
11577886883
122a1303692
1316623422c
14b842286a
157243a075
hex48d68c0e

1222020110 has 8 divisors (see below), whose sum is σ = 2199636216. Its totient is φ = 488808040.

The previous prime is 1222020083. The next prime is 1222020133. The reversal of 1222020110 is 110202221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1222020091 and 1222020100.

It is a congruent number.

It is an unprimeable number.

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, 61100996 + ... + 61101015.

It is an arithmetic number, because the mean of its divisors is an integer number (274954527).

Almost surely, 21222020110 is an apocalyptic number.

1222020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222020110 is a deficient number, since it is larger than the sum of its proper divisors (977616106).

1222020110 is a wasteful number, since it uses less digits than its factorization.

1222020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122202018.

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

The square root of 1222020110 is about 34957.4042228538. The cubic root of 1222020110 is about 1069.1191720323.

Adding to 1222020110 its reverse (110202221), we get a palindrome (1332222331).

The spelling of 1222020110 in words is "one billion, two hundred twenty-two million, twenty thousand, one hundred ten".

Divisors: 1 2 5 10 122202011 244404022 611010055 1222020110