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1121120212 = 221059726449
BaseRepresentation
bin100001011010010…
…1110111111010100
32220010120210210211
41002310232333110
54244001321322
6303125255204
736532236022
oct10264567724
92803523724
101121120212
11525930233
12273564504
1314b366c54
14a8c79712
1568658b77
hex42d2efd4

1121120212 has 12 divisors (see below), whose sum is σ = 1962219700. Its totient is φ = 560486016.

The previous prime is 1121120171. The next prime is 1121120219. The reversal of 1121120212 is 2120211211.

It can be written as a sum of positive squares in 2 ways, for example, as 69155856 + 1051964356 = 8316^2 + 32434^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121120192 and 1121120201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121120219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29164 + ... + 55612.

Almost surely, 21121120212 is an apocalyptic number.

It is an amenable number.

1121120212 is a deficient number, since it is larger than the sum of its proper divisors (841099488).

1121120212 is a wasteful number, since it uses less digits than its factorization.

1121120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37050 (or 37048 counting only the distinct ones).

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

The square root of 1121120212 is about 33483.1332464571. The cubic root of 1121120212 is about 1038.8449367997.

Adding to 1121120212 its reverse (2120211211), we get a palindrome (3241331423).

Subtracting 1121120212 from its reverse (2120211211), we obtain a palindrome (999090999).

The spelling of 1121120212 in words is "one billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 10597 21194 26449 42388 52898 105796 280280053 560560106 1121120212